Features: 

The Mouth Piece is made of soft silicone which material certificated FDA and LFGB, no rigid mouth inserts so it is safe and comfortable to bite down on when you carry your GoPro between your teeth for any activity!
Connect the Mount and Dummy Float to the housing of your GoPro. The camera will rest easy and softly on your chin taking strain off your jaw for the most comfortable shooting experience!
You will be able to capture amazing POV images and easily transfer the camera to hand held style shooting! If you want extra stable footage, and the ability to aim the camera up at the lip simply bite further up on the Mount for a breathable bite plate style of Mouth Mount.
Perfect for Water sport, Surfing, Canoeing etc.
Comfortable with: GoPro Hero 4 3 Plus 3 2 XiaoMi Yi SJ4000 SJ5000 SJcam

Package Included: 

1 x Braces Mount
1 x Float Sponge
1 x 3M Adhesive
1 x Screw