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)