Mfg. Part No.: 932-442 Brand: Best Welds Safety Plate, 4.5 in x 5.25 in, Polycarbonate, Clear. Strong impact resistance for safety. Optically correct and balanced. Light-weight. Color=Clear. Length [Nom]=5.25 in. Lens Coating/Shade=Clear. Material=Polycarbonate. Resistance=Impact Resistant. Style=Rectangular. Width [Nom]=4.5 in. Window Size=4.5 in x 5.25 in. .