Usage Tips: [Safe System]The snorkel mask features a completely dry snorkel system that reduces the length of the snorkel tube and increases the diameter for faster exhaust and better breathing. The movable float effectively prevents water from into the top, preventing water from entering the snorkel to prevent , allowing you to enjoy snorkeling, free diving or swimming.[Leak-proof and anti-fog ]The nasal mask is made of liquid silicone, which can perfectly fit different face shapes and maintain a high standard of leak-proof and comfort. The breathing channel is completely isolated from the lens to prevent fogging. snorkel mask can also be used as swimming goggles, diving goggles.[COMFORTABLE AND LIGHTWEIGHT] Compared with the full face type, the snorkel gear 't make you feel stuffy in summer, and the weight is only the full face snorkel mask. The snorkel set comes with adjustable straps that allow you to adjust to the most comfortable fit.[180 degree panorama] The snorkeling diving mask is made of professional high-definition anti-fog flat lens, which has a wide field of vision, high light transmittance and no dizziness. you with high definition and wider underwater . The diving snorkeling mask has a camera mount designed to help you record beautiful moment underwater.[High-quality material] The breathing tube equipment is made of high-quality liquid silicone, which is safe and environmentally friendly, non-toxic, non-peculiar, non-allergic, easy to clean, especially suitable for long-term use.Material:liquid siliconecolour:BlackPackage Contents:1 * Snorkel MaskOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.