window tempered glass lens for great visual clarity.Wide, expanded and superior field of vision.Clear undistorted view.Comfort-fit silicone skirt -tight seal.Anti-fog coating for clear viewing.This well-built mask has a high quality, tough and shatter and scratch resistant window tempered glass lens which provides great visual clarity. The soft and skin-touch silicone skirt and strap allow a water-tight seals.Split adjustable silicone strap for comfy security.Streamline stylish shape for snug fit.Colour:blackMaterial:Silica gelPackage Contents:1 x Diving MirrorOnly 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.