TINKERMAX - Ring Stand Holder/Mobile Phone Ring Stent/Anti-drop/360 Degree Rotating Metal Ring Holder Mobile Phone Stand for Smart Devices (Silver) Safe Grip - to prevent dropping device and control device while you are operating phone and taking picture. Hook Mount - enables users to mount their devices on flat surface, such as cars, tables, cupboards and so on. Phone Stand - Good for watching Youtube and movie and playing music/games. Convenient - Allows the device with the ring to be placed on any hook (not just the hook mount that's included), example would be the locking tray table lever on the back of airplane seats. Reusable self-adhesive - Dust can be washed out using clean water to restore strong adhesiveness.