Sellstrom® 380 Series Replacement Dual Crown Face Shield Windows are scratch-resistant and extra-wide to fit all facial contours ensuring reliable protection from splashes, particles and flying debris. Featuring a non-glare finish for optimal visibility, the uncoated windows are made of polycarbonate while Sta-Clear® anti-fog windows are made of acetate. Meets ANSI Z87.1+ and CSA Z94.3 standards when assembled with Sellstrom 380 Series face shields. Measures 19.5" width by 6.5" height by 0.040" thick. Designed exclusively for use with Sellstrom 380 Series face shield crowns.