mouthpiece designed for protecting whitening gel sticked on teeth well and act as mouth guard as well.

1, mouthpiece designed for protecting whitening gel sticked on teeth well and act as mouth guard as well.2, Made from 100% food grade silicone, high transparent, good quality. 3, It is double sides mouth tray with double arch. Thin and transparent so that easy to let the light whiten your teeth. 4, Humanise design of the two produching to rest your lips when open your mouth.

differen kind of mouthpiece