【𝘿𝙤𝙪𝙗𝙡𝙚 𝙁𝙡𝙤𝙖𝙩 𝘿𝙚𝙨𝙞𝙜𝙣】Our adult full face snorkel mask has a dual float ball design that prevents water from entering the mask by using gravity and buoyancy. It keeps the breathing tube dry to ensure diver safety. Compare with other snorkel masks, it is designed for inhaling only, and the amount of oxygen that can be breathed has doubled. 【𝟰 𝙐𝙥𝙜𝙧𝙖𝙙𝙚𝙙 𝘽𝙧𝙚𝙖𝙩𝙝𝙞𝙣𝙜 𝙏𝙖𝙗𝙡𝙚𝙩𝙨】Our snorkel mask has four breathing Tablets in the air chamber for enhanced breathing and 2 side exhale breath Tablets that eliminate carbon dioxide, reduce dizziness and prevent bubbles from obstructing your view. 【𝟭𝟴𝟬° 𝙋𝙖𝙣𝙤𝙧𝙖𝙢𝙞𝙘 𝙑𝙞𝙚𝙬】Our scuba mask has transparent flat lenses with a 180° panoramic view, providing clear underwater views without distortion, dizziness or discomfort. It features removable motion camera brackets for capturing and sharing your snorkeling experiences, and is suitable for all ages and skill levels. 【𝙋𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝘼𝙣𝙩𝙞-𝙁𝙤𝙜 & 𝘼𝙣𝙩𝙞-𝙇𝙚𝙖𝙠】Our adult snorkeling gear has a high-quality silicone construction that fully wraps the mask to prevent leaks. The interior layer isolates inhaled air and reduces condensation on the mask surface, creating a professional-grade anti-fog and anti-leak design for an amazing snorkeling experience. 【Size Selection and After-Sales Guarantee】Measure from the bridge of the nose to the bottom of the chin, and select the appropriate S/M size(less than 4.7inches) or L/XL size(more than 4.7inches). If you have any snorkels questions, please contact us promptly, we provide a 1-year warranty, with the option for replacement or refund service. Snorkeling Gear for Adults Teen