1. Lightweight and strong enough to float. 2. Bright color keeps you from losing the camera. 3. Built-in 6 screw holes enable you to connect your camera with 5 float bobber balls together to increase buoyancy. 4. Combine the bobbers with the coming connectors to float over the water. 5. The existence of anti-lost rope, no longer have to worry about the floating of the buoyancy ball, tied to the hands of a second security. 6. Designed for action camera like GoPro, XIAO YI, SJCAM etc..