VXDEFP Scuba Diving Tank Set K2 One-way Rebreathing Separation Submersible, Double-pipe Silicone Outdoor Swimming Snorkeling Mask(Nero)

When inhaling, the air enters directly from the sides and does not stay in the field of view. When exhaling, the exhaust gas is discharged from the exhaust valve in the middle to prevent the generation of mist. Equipped with a high-definition lens, users can enjoy the underwater scenery more clearly. Anti-fog film design, up to 15,000 hours of anti-fog effect, no fog obstructing vision. Waterproof system, floating bead design to prevent seawater from entering the snorkel. 3D fit, tightly waterproof, fits the face.