for insta360 x5 snap-on glass protective lens Material: optical tempered glass, coated with anti-reflection, anti-fog, anti-water film, and then hardened Function: anti-scratch, anti-fog, waterproof, dustproof, anti-deformation, high temperature resistant 1. Adopt optical tempered glass, with a hardness of 9H. Optical tempered glass material is about ten times harder than plastic protective lens. The face hardness of plastic is generally 1H, and tempered glass can reach 9H or >9H! No longer afraid of scratches, more dependable than plastic protective lens, better light transmittance 2. The transmittance of the lens material is close to 92%, and the for AR coating layer increases 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 face to affect the shooting effect 4. The snap-on installation is adopted, and the installation and disassembly are simple and convenient Hardness: 9H Lens material: optical tempered glass Transmittance: 99% Other materials: high-quality PC Size: 55*48*48mm Packaging size: 5.2*5x5cm Net weight of the product: 149 Weight after packaging: 26.2g The product contains 1 snap-on protective lens, 1 copy of the instructions, and 2 packs of alcohol Packaging: color box packaging