Important Information -- First time use is very important. We suggest you don't pull it directly after sticking it on your phone well. Please press about 30 seconds and just wait one night before first use so that our phone ring can stick on the device surface best. If you failed to install well on your smartphone, you can take it off and re-do it, it won't leave any traces. Cute Cat Phone Ring -- Ultra thin, only 3mm. With 3M adhesive (a quality glue bottle), our phone ring is durable and sticky, it sticks well on the back of smartphone. After installed, it will be more convenient to achieve phone operation with one hand and anti-drop. Multi-function -- Our phone ring can not only prevent smartphone dropping, but also be used as a phone support. Besides, it can be stuck on the magnetic phone holder in the car. Note: This ring can't work well with glass such as Phone X / 8 / 8 Plus, yet you won't worry if your cellphone has a case (but not silicone). 360 Degree Rotation -- This phone ring can be folded 180 degrees and rotated 360 degrees, choose a suitable angle to easily install your phone vertically on the table, and then you could quietly watch a movie or do Facetime with your friends.