The durable Pop-Grip is compatible with SAMSUNG, ONEPLUS, IPHONE and most other devices. It acts as an anti-drop grip, allowing one handed use and phone stand capability. It is commonly referred to as a cell phone holder, phone gripper or phone handle. It is fully compatible with all Case Holder Phone Grips accessories MOUNTS, CASES, CASE WALLETS, SLIDES and even non-Case Holder Phone Grips cases. Secure adhesive is best used on smooth, HARD CASES such as - Platic Case, Matel Case, GLass Case and any HARD MATERIAL CASE; NOT recommended for use on SOFT CASE such as - silicone, soft or waterproof cases or directly on the bare device.