Procean moldable silicone mouthpiece

This soft silicone mouthpiece for the regulator second stage can be shaped to suit you.
The silicone mouthpiece molds to the exact shape and size of your mouth.
It reduces jaw fatigue when diving.
Heat in hot water and bite to create your own personal, perfect fit. Replaces the first stage mouthpiece of a normal regulator quickly and easily, fasten in place with a cable tie.

See the instructions in the picture.