Outside Prot Plate, Compatible with Brand Speedglas, Compatible with Grainger Part Number 6DNC9, Compatible with Manufacturer Model Number 07-0012-31BL, 07-0012-31BL-HH, 07-0112-00BL-QR, Compatible with Series 100 Series, Features Protection Plates, For Use With 100 Series Welding Helmets, Material Polycarbonate, Plate Length 4 in, Plate Thickness 0.06 in, Plate Width 3 in, Standards ANSI Z87.1-2010, Welding Shade Designation W8-12