Frame material: PC Lens material: tempered glass Mirror strap material: silicone Size: 15cm * 7.5cm color: blue Quantity: 1 Package Contents: 1pcs 100% Diving Goggles Safety Tempered Glass Lens Diving Mask with Nasal Mask, Ideal for users who don't know how to stop with their nose while swimming, snorkeling or diving Our diving mask lenses are made of tempered glass, which is safe and different from ordinary swimming goggles with plastic lenses The swimming mask adopts a soft food-grade liquid silicone strap, which is environmentally friendly and healthy, providing the ultimate comfortable experience The height-adjustable mask buckle and flexible face skirt are perfectly designed to fit almost any face shape and head size. Silicone mask straps High quality soft silicone mask straps to avoid hair tangles and provide more comfort The strap protects your hair well from pulling when putting it on and taking it off, providing an extremely comfortable experience The easy-to-adjust side buckle diving mask is suitable for users of different head sizes, the key to avoiding leakage is to tighten the mask, you can feel the silicone skirt is completely absorbed by your face BEST GIFT Ideal diving mask for kids swimming, bathing and snorkeling is a great gift for kids