Optical tempered glass feature: 1 Using optical tempered glass, with a hardness of 9H, the optical tempered glass materials is set ten instances tougher than plastic protecting lenses, and the surface hardness of the plastic is about ten occasions 2 The transmittance of the lens material is close to 92%, and the AR coating layer is applied to increase the transmittance of the lens to over 98% 3 The lens is lined with a water-resistant film layer, with a dripping perspective of a hundred and fifteen degrees, and there are no residual water droplets at the floor of the lens that influence the capturing impact four Adopting a spiral set up method, the set up and disassembly are uncomplicated and convenient five Anti scratch, anti fog, dust-proof, anti deformation, and hot temperature resistance Parameters: Hardness: 9H Translucency: 99% Size: 36 * 36 * 13mm Bracket material: High high quality PC Net weight of the product: 12 grams Lens material: optical tempered glass Package included: 1 x Spinning tool 1 x Instruction handbook 1 x Alcohol cotton pad 2 x Glass protective replicate PC plastic feature: 1 Detachable design, making disassembly and meeting extra convenient 2 Panoramic lens protector, designed to slot the lens and not petrified of scratches 3 Special lens protector, product of high-strength PC material, immune to every day bumps and scratches Specification: Net weight: 12g Translucency: 99% Bracket material: PC Size: 36 * 36 * 13mm Lens material: PC-2805 (plastic) Lens material: German Bayer excessive transparency PC-2805, hardened, elevated transparency, waterproof, AF AR double-layer optical coating Package included: 1 x Spinning tool 1 x Instruction manual 1 x Alcohol cotton sheet 2 x PC plastic protecting mirror"