I gave these to my friends and family for Christmas. At first they were like "what the heck is this?" Once I explained it to them they were really happy.
With these, you can "wear" your phone on your finger which doesn't sound like something that you would want to do, but it makes the phone more secure while texting or operating it. Also it has 360' swivel so you can use it as a phone stand and watch videos without needing to find something else to prop it up.
They adhere to the back of your phone with a little sticky kind of like a 3M Patch.

Here is what the company has to say about their product:

Durable material and fashionable design made of zinc alloy, it is pretty durable and comfortable for daily use. 4 colors and water-drop shape, nice gift for family, friends, lovers, etc.

Compact and stylish look matches your phone, different from common one. Flat surface, make your phone steadier and safer when putting on the table.

Multifunctional use: Phone stand: Prop up your device on the table, free your busy hands to watch tv.

Phone grip: Grip your phone to avoid dropping it while running, taking selfies, etc.

Car mount: Work with complimentary 5 pieces of hooks to make you drive safely.

Hanger: Hang gadgets, manage cables to free from tangling, or more creative usage.

Washable and removable 3m adhesive stay firmly in place, prevent accidental drops, slips, theft and snatch. You can remove it and wash it with water, and reuse it after dry.

Bonus in the package 4 pack finger loops with 5 car mount hooks and 4 additional 3m adhesive.

Compatible with any smartphone (android/iOS device) iPhone, google nexus, Samsung galaxy, HTC and more.1 year money back or free replacement for our customers