Product Description Faceshield window provides a wide viewing area, great protection from sparks and spatter and is available in three sizes. Excellent optics with a uniform shade 5Protection from infrared and ultraviolet raysSingle or double crownRatchet or positive lock headgear.060" (.15 cm) acetate replaceable windowsMeets ANSI Z87.1-1989 and CSA-Z94.3-92, SEI Certified