high light transmittance, scratch resistance, impact resistance, clear field of vision, safety explosion-proof. Small in size, light, foldable and easy to carry. The length of the goggles can be adjusted according to the size of the individual's head to reduce the pressure on the head. High light penetrability& view angle, make you enjoy all the things under water. Adjustable side buckle - easy to adjust the tightness, enjoy comfort just by one hand.Physics design, more comfortable, high performance. Material: stainless steel+silicone Color: Black Package Contents: 1 x Scuba Diving Mask Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.