The Forney #11 2 In. x 4-1/4 In. Welding Lenses 57011 are welding lenses specifically designed for welding helmets. Made by the brand Forney and manufactured in China, these lenses provide protection and safety for welders during their work. The product includes a warning regarding potential health risks associated with the chemicals used in the manufacturing process, making it important for users to be aware of the potential hazards. These welding lenses are essential for ensuring the safety of welders in industrial settings.