Accurate and clear vision The diving mask uses lenses made of tempered glass, and it has good light transmission. The lens resists the effects of water pressure, cracks, fog and dust, giving you a clear, bright and safe view, enjoying beautiful landscapes and protecting your eyes.COMFORTABLE, SAFE AND ECO-FRIENDLY MATERIAL: The edge of the snorkeling mask is made of soft and comfortable silica gel, which is safe and odorless and conforms to your face. In the underwater area, the eye mirror, which is tightly closed and non-slip, prevents leakage and suffocation, and is the best choice for children and teens when diving.Adjustable Buckle The glasses have an adjustable strap that you can adjust to the right length and perfectly adjust to your head. And the adjusting strap is made of soft silica gel, which is corrosion-resistant in sea water, comfortable and loose, and comfortable to wear.Practical The diving mask is suitable for all face shapes and perfect for your child. It is widely used for snorkeling, deep diving, swimming and provides different diving experiences.Not suitable for children under 3 years old.