Product Material: Aluminum Alloy + Optical Glass Lens.Dual-Angle eyepiece system, wide-angle full screen, no vignetting and no dead angle.Multi-layer optical HD coated lens.High-resolution & long-distance shot.With the latest upgraded camera fixed elastic metal clip.Support single camera, dual camera, three camera and four camera.Widely compatible with all mobile phone models with single camera, dual cameras, three cameras & four cameras.Package:1 x Monocularwater-proof&antIskId:Durable rubber texture anti-slip grip against careless falling or accidental crash. It is waterproof(Grade IP4),you can use this item in different situations in your daily life.