Some pleasures only grown ups can understand. Like when your vacuum fits perfectly between furniture. Or when you finish that mandala in your adult coloring book and didn’t once go over the lines. Those are the little joys in life to really appreciate and cherish. This is what the internet was made for ‒ to share these moments of delight with others.

Bored Panda has put together a collection of pictures from all over the web where sometimes things just perfectly fit with others. And to know why exactly we are positively triggered by perfect fits, we’ve sought expertise from an APA Journal Psychology of Popular Media editor Karen Shackleford, Ph.D.

So please don’t hesitate, dear pandas, and scroll down to satisfy your inner perfectionist. Don’t forget to let us know which posts you like best.

#1 The Head Just Fits Perfectly

Image credits: ROOTBEER360

Social psychologist Karen E. Dill-Shackleford begins with defining what can be considered “a perfect fit.” “A container is ‘right’ for the object(s) it holds when it conforms to the shape and there is no wasted space.” She then gives a simple everyday example: “A bun is the ‘right’ container for a hot dog because it was made to fit.”

There is a difference between seeing the aforementioned hot dog fit into its bun and a cat that nestles in its new bed to perfectly fit its shape. We expect the hot dog to fit – that’s what they’re made for. It makes sense, it’s logical.

#2 The Way The Veins Of The Leaf Align On The Creases Of The Hand

Image credits: admiralwan

#3 Perfectly-Timed Shot

Image credits: _Abnormalia

Other times, like when non-food related items fit into a sandwich bag, we get satisfaction from efficiently used space. It’s the visual representation of finishing one’s plate. We like its feature of effectiveness.

Sometimes the reason can be pure aesthetics: “There is beauty in forms that seem made for each other,” says Dr. Shackleford. Just like we love looking at the sun setting into the ocean, we can enjoy things purely because of their aesthetic value – it just looks pretty.

#4 A Worker Took A Picture Of Her Truck After She Was Done Loading

Image credits: jedidoesit

#5 Purrfect Fit

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#6 Couldn’t Find My Bath Mat For A While

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If we measure the cat or the pet bed prior to buying, we can say that it was planned. Then the satisfaction comes from it being custom-made to fit the cat. Still, it is expected, the perfect fit is not suddenly sprung upon us.

#7 I Can’t Leave An Instrument Case Open For Any Amount Of Time Without Her Doing This. My Mandolin Case Happens To Be Just The Right Size For Her

Image credits: carcaranarchy

#8 My Parents' Hoover Under Their Cabinet

Image credits: A1Qicks

#9 This Bench Perfectly Fits Its Window

Image credits: anchen47

So here comes the biggest difference in what perfect fits really tickle our brain in the right way and which are just mildly satisfying. The factor of surprise plays quite a significant part in the amount of joy we get.

#10 The Water Stream Fits Perfectly In The Hole

Image credits: Expensive_Win

#11 The Way My Lord And Savior Leans In To Watch Me Cook

Image credits: Muse_22

#12 Right Click, Inverse Selection

Image credits: --Gianni--

Belgian experimental psychologist Johan Wagemans has done research on this phenomenon. According to him, there are two explanations of why we love looking at things that fit into other things. Firstly, it satisfies our need for order. In a world where we control very little, it’s nice to see little things that bring order.

#13 Purrfect Selfie

Image credits: burglarturtle

#14 Doesn't Get Much Better Than This

Image credits: Nykolaishen

#15 Glorious

Image credits: frankcfreeman

Another reason is finding order where we least expect it. The sense of surprise deepens our satisfaction in cases where we expected failure. Wagemans explained this sensation to the Atlantic: “Suddenly you see things in a different relationship and it challenges your expectations about how things relate to each other.”

#16 I Found A Banana That Fits Perfectly In My Banana Case

Image credits: Markymark142

#17 Watermelon In A Ziplock Bag. It Took 3 Bags But It’s The Most Efficient Way

Image credits: BaileyPruitt

#18 Our Suitcases Fitted The Trunk Of Our Car Absolutely Perfectly

Image credits: jtube

“The unusualness of the combination might grab the attention, but it’s also how extreme the coincidence of a perfect fit is. If you look at it statistically, and in terms of how these objects are made, and how they came together, it’s almost too good to be coincidental. If it would fit only 75 or 85 percent, it wouldn’t be fun,” says Wagemans.

#19 Gibson And Schecter Guitar Headstocks Fit Perfectly With Each Other

Image credits: Aethro_

#20 No Edge Left Uncleaned

Image credits: LonelyRestaurant6772

#21 We Just Thrifted This Couch For Our Basement

Image credits: PowerlineCourier

Dr. Shackleford agrees with the statistics argument: “You feel that good fortune has befallen you because you have defied the odds. Surely, there are low odds that of your haphazard assembly of things, any container will be the perfect fit for any object you possess.”

#22 How She Fits Perfectly In The Sink

Image credits: HappyJacket3113

#23 I Accidentally Dropped My Can Of Tuna In The Sink Today

Image credits: Lab_and_Crobster

#24 Hmmm Yes

Image credits: Xtian_0223

Our expert also relates this to the psychology of human relationships. “This may mirror the feeling of gratitude we feel when a person meets another person that feels like a custom fit,” Dr. Shackleford adds.

“In the haphazard collection of humanity, the odds seem low that any two would be a custom fit for each other. When you feel you’ve found one, you realize how fortunate you are.”

#25 Cork Coaster So I Can Play At Night Without Waking The Kids

Image credits: KernowFunk

#26 I Just Discovered That This Container Fits Exactly 4 Stroopwafels. Today Was A Good Day

Image credits: LightExpo

#27 The Way This Stroopwafel Sits Perfectly Inside The Mug's Rim

Image credits: reddit.com

Dr. Karen also carefully speculates there’s a Freudian angle to liking perfect fits. “Maybe it relates to something biological or even sexual – that body parts that were made to fit together are valuable,” she says. 

#28 Satisfying Office Desk

Image credits: HovercraftMain

#29 Opened My Mailbox Today To Receive A Package

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#30 Squeegee Meets Window

Image credits: YanisK

“To be explicit, [male and female genitals] need to form a good fit in order for humans to reproduce. So maybe we look for those patterns of fit in the world based on a primal desire for a good fit,” Dr. Shackleford suggests.

#31 This Parking Job In Japan

Image credits: Tweecers

#32 I’m Very Proud Of My Tea Drawer

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#33 Look At That

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#34 Snoot In A Pineapple

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#35 I Lost My Ring At The Workshop, Found It Days Later In One Of Our Grip Mats

Image credits: NoirRaven100

#36 New Apartment. New Problems

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#37 Lost The Screw Cap For Our Air Mattress. This Was The Third Bottle I Tried

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#38 The Way These Coat Hangers Are Packed

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#39 I Can't Express How Happy This Made Me On A Tough Job

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#40 Initially This Space Was Reserved For A Coat Rack, But Happened To Be A Perfect Fit For My Old Fridge

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#41 Had A Pot Of Hot Tea At A Restaurant And They Couldn’t Find The Lid But They Had A Perfect Solution

Image credits: CcSimonne

#42 Potato Smile In My Onion Ring

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#43 The Perfect Fit

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#44 Moved My Desk Into A Closet. Perfection Ensued

Image credits: perfectfiction

#45 This Truck Driver Is Barely Scraping By

Image credits: reddit.com

#46 Not The Usual Perfect Fit. Baby-Proofed The Bath Tub And Our Drain Plug Turned Into A Perfect Top Hat

Image credits: bamilr36

#47 The Way The Sunlight Shined Through My Window Makes It Look Like A Fire In The Fireplace

Image credits: timothy53

#48 If It’s Not Supposed To Work, It Shouldn’t Fit

Image credits: TypicalRecon

#49 Got This TV In My Civic Hatchback

Image credits: ZedDead9631

#50 Perfect Fit Or Perfect Save?

Image credits: Blue-_-Jay

#51 My T-Shirt's Design Perfectly Fits Through The Hole Of My Gaming Chair

Image credits: laserwafflez

#52 My Cat Snoozing In His Basket

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#53 This Bit Of Schnitzel Fits Perfectly On The Bread

Image credits: SAbbon01

#54 Stepped On A LEGO And It Perfectly Fit My Shoe

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#55 My Girl's Ring On The Inside Of Mine

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#56 This Ice Ball So Perfectly Fits My Glass, It Forms A Seal, Keeping Liquid From Reaching The Bottom

Image credits: Sahlmos

#57 Macintosh LC Fits Nicely In IKEA Shelf

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#58 My Toddler Found One

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#59 Do Pork Chops Count?

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#60 Couldn’t Believe My Luck When Trying To Vacuum Here

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#61 Perfect Orange

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#62 Walked Into This In My Office

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#63 The Chain And The Art On The Wall

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#64 Band-Aids On A Shelf In My Medicine Cabinet

Image credits: reddit.com

#65 My Postman Fit My Package Perfectly Into My Post-Box Today

Image credits: jubjubmacrub

#66 Does This Count?

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#67 This Plate In This Pot... Much To My Frustration

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#68 People Put 10 Cent Coins In These Construction Holes In Temppeliaukion Church, Helsinki

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#69 Perfect Enough

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#70 Album Art And My Hamster Wallpaper

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#71 Potted Little Friend In My Cupholder

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#72 The Shadow Of The Ledge And The Crack In The Sidewalk

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#73 Me And Ceilings

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#74 There Are Two Cups

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#75 Never Lose Your AirPods Again

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#76 Furnishing My First Apartment

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#77 My New Phone Is A Nice Fit In The Car's Wireless Charger

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#78 Boxes In Crate

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#79 A New Form Of Measurement

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#80 Exclusive Parking Spot

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#81 Soda Can In A Railing

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#82 How This Salami Perfectly Fits On The Bread

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#83 It’s Like This Ramen Was Perfectly Made For This Pot

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#84 Mints In A Cup Holder, Angry Wife

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#85 This LEGO Star Wars Set In This Section Of My Coffee Table

Image credits: where-is-my-england

#86 Found A Fit While Doing Paving Work

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#87 The Way One Bag Fits Perfectly In My Plate When Placed In A Row

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#88 My Husband Was Washing Dishes And Our Soy Sauce Tray Fell Toward The Drain, And Well It Was Too Perfect Of A Fit. Couldn’t Get It Back Out. We Had To Drill Through It And Break It

Image credits: Its_Billy_Bitch

#89 My Toilet Has A Triangular Top To Fit Into The Corner Of The Bathroom

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#90 This Package I Got From Amazon

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#91 I Hope The Delivery Guy Felt The Same Way I Did

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#92 The Way My Pills Fit In The Bottom Of The Bottle

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#93 How The Dice Fit Into This Box

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#94 It Should Be Known That American-Made Vehicles Do Not Have "Cup Holders", But Instead Are Designed For Dipping Sauces

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#95 Tiny Watermelon In A Bowl

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#96 Pinecone Sole, Extra Comfy

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#97 Only The Avatar Can Perfectly Fit All 4 Corners

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#98 Stupid, Silly Thing That Gives Me Joy

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#99 After Removing My Lashes And Putting Them On Top Of This Magazine I Then Realized

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#100 The Drop Cloth Is A Perfect Fit For The Room We’re About To Paint

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#101 My Finest Parking Achievement

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#102 A Nintendo DS Lite In A Snack Bag

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#103 It Was Suggested I Post This Here

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#104 Grandma Gave Me The Painting That Watched Over Me As I Slept. It Gave Me Nightmares. I Was Worried It Wouldn't Fit Over The Mantel. Perfect Fit

Now it keeps an eye on my front door.

Image credits: coffeecupcakes

#105 Our New Shelf Fits Perfectly In The Storage Room

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#106 This Hockey Puck Inside This Roll Of Tape

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#107 Legs Of The Plastic Christmas Tree Stand Fit Perfectly In The Dimples Of This Random Tupperware Storage Bin

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#108 Flags/Stripes Coming Out Of Their Backs

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#109 Pipe Froze And Burst. Found The Perfect Thing To Seal It

Image credits: Amneesiak

#110 Sponge-Father In My Flour Sifter

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#111 My Cards In A Random Wooden Wine Case

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#112 Purchased These Containers For Cable Management And Electronic Parts Organization. 21 Containers Will Fit In The IKEA Alex Drawers Perfectly

Image credits: UnlikelyTheory

#113 The Perfect Fit In My Shopping Basket

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#114 TV With Nearly No Tolerance

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#115 Mini Sprite Can In The Grates Of Our Stovetop

Image credits: Shmoopity420

#116 I Noticed This Bottle Of Oasis On The Shelf That Was Slightly More Full Compared To Others. Took The Cap Off And They Have Not Wasted A Drop

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#117 Cool And All, But Now I Have To Break The Cookie

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#118 My Coffee This Morning After I Misclicked

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#119 The Coin Holder From The Dodge Charger Fits Perfectly In The Toyota Prius

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#120 My Wedding Ring And A Tums Antacid

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#121 Perfect Tiramisù

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#122 Truck And Nuggets

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#123 These Yogurts Fit Perfectly Into The Cup Holders In My Friend's Car

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#124 This Plate Perfectly Fits 9 Saltine Crackers

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#125 Took My Yogurt To Work In The Best Spot

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#126 It’s Almost Like This Shelf Was Made For Collecting Blu-Rays

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#127 Perfect Banana Angle

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#128 Slim Perrier Fits Perfectly Into The Bottom Of A Crosswalk Sign

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#129 The Tomato From My Sandwich On The Lid Of My Cup Of Soup

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#130 Ketchup In A Fridge

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#131 Console Compartment Fits My Kindle Perfectly

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#132 She Fits, Boys

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#133 Walked Into This In My Office

#134 Never Lose Your AirPods Again