PopSockets PopGrip with swappable top for cell phones is part stylish phone accessory, part opposable thumb for your phone. PopSockets PopGrip lets you take selfies, text with ease, or stand your phone up on a table. When you’re done, it collapses flat. Did we mention each PopSockets PopGrip includes a swappable PopTop? Switching out your PopTop for another or remove it completely. PopGrips are compatible with PopWallet+, Otter + Pop cases, PopPower Home, PopMount 2, PopGrip Airpods Holder, PopGrip Lips, PopGrip Slide, PopChain, and PopThirst. PopSockets PopGrip: Improved gel on all PopSockets products. Sticks best to smooth hard plastic material phone cases, will also stick to glass backed phones. Will not stick to textured material & soft material phone cases. *Will not stick without a suitable case. Diameter: 1.5 inches (38.82mm), Height: .29 inches (7.46mm) when collapsed, .97 inches (24.71mm) when expanded. PopSockets offers its customers a limited, 3-year warranty on its products from the date of purchase. For full warranty details, please contact PopSockets. Directions: Base sticks to smooth, hard, flat surfaces only. Pull twice to grip. Close flat to pocket. Kick back to watch. Swap your style: Close flat, press down and turn to swap tops. Move base as needed.