1. Optical tempered glass with a hardness of 9H, optical tempered glass material is about ten times harder than plastic protective lens. The hardness of plastic is generally 1H, and tempered glass can reach 9H or 9H! No longer afraid of scratches, more than plastic protective lens, better light transmittance. 2. The transmittance of the lens material is close to 92%, and the AR coating layer is coated to increase the transmittance of the lens to more than 98% 3. The lens is coated with a waterproof film layer, the drip angle is 115 degrees, and there are no residual water drops on the lens to affect the effect 4. The installation is adopted, which is simple and convenient to install and disassemble Anti-scratch, anti-fog, waterproof, dustproof, anti-deformation, high temperature Hardness: 9H Color: Black Material: Optical glass + PC Package Contents: 1 * Lens Cover 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.