Feature: 1. SAFE MATERIAL: Refined with food grade silicone, it is safe and odourless. Users can use it without any worry and it will not cause any harm to your mouth and health. 2. SOFT, ELASTIC: The diving mouthpiece has soft elasticity and is not easy to deform. It can be adapted to different mouth shapes, providing a comfortable use experience and a long service life. 3. DOT DESIGN: It adopts a dot design, which is fashionable and simple. It not only looks beautiful, but also provides users with a comfortable bite, effectively preventing bite fatigue and providing a better diving experience. 4. UNIVERSAL INTERFACE: The diving mouthpiece has a universal interface, which is suitable for most diving breathing regulators, you can buy it with confidence. 5. REGULATOR TIE: It comes with a tie slot, which can be used in conjunction with the complimentary tie to make the connection stronger and tighter, ensuring a safer dive for the user. Specification: Item Type: Diving Mouthpiece Material: Silicone Weight: Approx. 85g / 3oz . Package List: 4 x Diving Mouthpiece4 x Regulator Tie