These high-quality tear off lenses are essential for keeping your vision clear when sandblasting. A package of 50 lenses ensures you'll have on-hand protection for continuous use in demanding industrial environments. Each polycarbonate lens is optically correct to prevent distortion and features an anti-scratch coating to maximize durability even when subjected to abrasive blasting. A simple peel-and-stick application method means you can replace a worn lens in seconds, keeping your Nova 2000 blast helmet visor crystal clear. performing at its best.