Fischer's plexiglass is made of high-strength polycarbonate. Its convex design eliminates distortion. The inner surface is treated with an AntiFog anti-fog coating, minimizing the risk of reduced visibility in humid environments or sudden temperature changes. Additionally, the plexiglass features an AntiScratch surface treatment, making it scratch-resistant. The sling fits all popular helmet types, complies with European standards, and is manufactured in accordance with the European standard EN ISO 102 56: 2003. It's transparent. Includes instructions and a mounting kit.