Goliton Floaty Float Box Sponge With 3M Adhesive Anti Sink for GoPro HD Hero 1 / Hero 2 / Hero 3 / Hero 3+/Hero4 /Hero5 /4 Session/5 Session XiaoYI Xiaomi- Red Suitable for Gopro hero1,2,3, Hero 3+ ,Hero4 and other outdoor sports mini -camera. It can make them float, stop the camera to sink. Size:17cm x 7cm x 4.5cm Weight:30g