Gopro Camera Bottle Cap Buoyancy Adapter

User instructions - Prevents Gopro from sinking Add some water to bottle for different levels of float-ability Make your Gopro submerge to a fixed depth with more or less water in the bottle (recommend attaching a string onto the Go pro to prevent loss) Contains two varieties - Model 1 for Coca bottle and 30,5mm diameter cap Model 2 for Water bottle and 32mm diameter cap Cap must be glued inside Gopro support (loctite 401 supper glue works great)