Designed for optimal safety and clarity, this Weldmark Filter Lens Shade 5 is a crucial accessory for welding helmets and goggles. Measuring 4.25 inches by 2 inches, this rectangular lens is crafted from heat-treated, hardened glass that offers superior protection against harmful ultraviolet and infrared rays, ensuring compliance with GGG-H-211D and ANSI Z87.1 standards. With its smooth rounded edges and precisely shaded optical quality, this filter lens is ideal for various welding applications, providing a reliable choice for both light and heavy-duty tasks. Whether you're a professional welder or a DIY enthusiast, this lens delivers the essential eye protection needed in a demanding welding environment.