SUPER STRONG 3M ADHESIVE. Sturdy 3M sticky surface provides durable and reliable connection between your mobile phone and UGREEN ring stand, holding your smartphone securely. ??IMPORTANT NOTE?? Please wait at least 1 hour after installation to use this phone grip. For phone with hardened glass surface, we suggest you stick this product on a phone case(NOT INCLUDED) UNIVERSAL COMPATIBILITY. Work perfectly for all the cellphones. Compatible with Apple iPhone 11 Pro, the new iPhone SE 2020, iPhone XS Max XR X 8 Plus 7 7Plus 6S Plus 6 5S 5C 5 4, Samsung Galaxy S9 S9+ S8 Plus Note 8 9 S7 Edge S6 S5 S4 Mini J7 J3, Google Pixel 3 2, Pixel XL, Nexus 5X 6P, LG G7 V40 ThinQ V20 V30 K20 G4 G5 G6, HTC U11 10, Moto G6, OnePlus 6 5T 3T 3 5, Huawei P20 Pro P9 P10 Mate 9, etc. Kindly Reminder- This ring phone holder does not support silicone phone case. 360 DEGREE ROTATION. Adjustable 360?? rotation and 180?? flip foldable functions make this ring stand more flexible, allowing you to adjust your preferred viewing angle. A perfect solution to place your smartphone on office desk, kitchen counter or bedside table when you are watching video, listening to music, making a video call or even playing games. SLIM AND PORTABLE. With a thickness of 3mm, this thin ring stand holder fits your cell phone perfectly on the back, providing portable size for your fingers and ensuring you to easily slip it into pocket or take it for travelling. WHAT YOU GET. 1x UGREEN finger ring for phone.