Features:1.Comfortable Silicone Design: This diving mouthpiece features a tongue rest design that prevents masseter muscle fatigue ensuring a more comfortable and enjoyable diving experience.2.Long-Lasting Odor-Free Material: Made from high-quality silicone this mouthpiece is odor-free and long-lasting providing a clean and fresh breathing experience with each use.3.Secure and Reliable Connection: The tight connection of this mouthpiece ensures that it won't affect your breathing while diving providing a secure and reliable attachment to most scuba breathing regulators.4.Versatile and Thoughtful Gift: Ideal for scuba diving and free diving enthusiasts this silicone mouthpiece makes a thoughtful gift for family friends and colleagues who enjoy underwater adventures.5.Universal Compatibility: This silicone mouthpiece is suitable for most scuba diving and snorkeling activities offering a comfortable and reliable fit for a wide range of users. Specifications: Size: 5.1*5.4*3.6cm Weight: 21g Notice:1.Actual color may be slightly different from the image due to light effect.2.Please allow 1-3cm deviation due to manual measurement. includes: 1 * Silicone Diving Bite Mouthpiece