【No Biting or Jaw Fatigue】Upgraded New Version for common scuba diving snorkeling mouthpiece. Just place the molded mouthpiece in the position of your teeth. No need to bite hard, easily release your facial muscles. Bring you a comfortable snorkeling/scuba diving experience.
【Food Grade Non-toxic and Safe】Made of TPE Medical Material, which was commonly used in the production of medical appliances and kitchen supplies. Food Grade Non-toxic and Safe. Degradable and Environmentally Friendly.
【Easy to Mold, Fast and Simple】Customized in hot water. One time molding, continuous use. It’s not easy to get started with shaping for the first time. Please carefully read the instruction and operate according to it. Hope you succeed in one go.