PVC structure, Flip-up front lenses for labour inspection, Green shade polycarbonate front protective lens, Indirect ventilation, Can be used with prescription lenses, For use in oxyfuel and plasma cutting (PAC), Protection against intense light, UV and infrared rays, For gas welding, brass welding and cutting jobs. Shadow: No 6, Length: 195mm, Lens Diameter: 50mm, Weight: 120g