【Superior Optical Glass Protection】Made of optical tempered glass with anti-reflective, anti-fog, and water-repellent coatings, plus additional hardening treatment, offering 10H hardness - ten times harder than plastic protectors for ultimate scratch resistance. 【Enhanced Light Transmission】High-quality optical glass with AR coating ensures over 98% light transmission, capturing clearer and more authentic images compared to standard protectors. 【Anti-Fog and Water-Repellent】Special coating achieves a 115-degree water contact angle, preventing water droplets from affecting image quality while ensuring fog-free shooting in various temperature and humidity conditions. 【Dust-Proof and Deformation Resistant】Effectively blocks dust entry and maintains its shape under pressure, providing consistent protection for Insta360 X5 lens. 【Heat Resistant and Easy Installation】Maintains stability in high-temperature environments and features a simple screw-on design for quick and tool-free installation and removal. Specifications: Material: Optical tempered glass Hardness: 10H Light Transmission: >98% Water Contact Angle: 115 degrees Installation Method: Screw-on design Compatibility: for Insta360 X5 panoramic camera