1. Made of optically tempered glass with a hardness of 9H, optically tempered glass material 2. The light transmittance of the lens material is close to 92%, and the AR coating layer increases the light transmittance of the lens to over 98%. 3. The lens is coated with a waterproof film, with a dripping angle of 115 degrees. No water droplets remain the lens to affect the effect. 4. Adopt adhesive arrangement, easy to install and disassemble. For X4 Rotating Optical Tempered Glass/Plastic Protective Mirror Function: Anti-scratch, anti-fog, waterproof, dust-proof, anti-deformation, high temperature resistance Material: Glass colour: As shown Package Contents: 1 set x lens protector 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.