Features: Perfect sealing performance: The mask is made of silicone material, which is very soft and fits the face, minimizing the pressure on the face, suitable for different face shapes, no need to worry about leaking. This is great option to experience snorkeling and swimming With anti-fog film: Our diving mask uses anti-fog film to protect fog from appearing on the inside of the lens with an exhalation from the nose, which makes you see clearly underwater. Safety: The lens is made of premium tempered glass, toughened to withstand 50m deep water pressure without breaking, and at the same for time has a wide and clear for vision, which protects the eyes to the greatest extent during swimming and diving Dual Lens Snorkeling Mask Design: The snorkeling mask should help you see better, it doesn'for t obstruct part of your view. Now you can enjoy all the underwater scenery clearly. One Size Fits Most Dive Mask - Adjustable for head straps and a high-quality soft silicone skirt conforms to virtually any face shape. Ribbed design provides additional support and ensures a tight seal. Specifications: Material:Silicone Size:15.5x8.5cm/6.10x3.14in Package Includes: 1 x Snorkeling Mask note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!