The Hex Cover is a tough, low-profile Anti-Reflective Device that minimizes reflections while maintaining clear target acquisition. Its hexagonal design is optimized to reduce glare without hindering your view. Installation is fast, simple, and tool-free. The hex cover also protects your high quality glass with a scope cover than can be readily flipped up. Crafted from durable Nylon using MJF printing, the Hex Cover delivers a strong, high-quality finish. REFERENCE SIZING CHART for compatibility with your LPVO or scope. Note, sizes 30-39.5 use a range band and sizes 53-65 use a cord collar. 53mm - Generally scopes with a "x44" 59mm - Generally scopes with a "x50" 65mm - Generally scopes with a "x56"