1. Anti Gravity case Sticks without being stick.2. Anti Gravity case Stick to glass, mirrors, whiteboards, metal, kitchen cabinets or tile, car GPS and most smooth, flat surfaces.3. Once Anti Gravity case back dirty with dust ,use water to clean very clearly ,start to use again4. Anti Gravity Case assembled by PC and TPU and import back stick material5. Anti Gravity Case protect your phone very good customized case for your phone6. Simple-press buttons allow you to feel the click and large openings for cable and charger ports .