❀Complete Fastening Set: Includes 4 premium aluminum fasteners and 4 silicone washers for secure attachment, suitable for screws on welding hoods for upgrade . ❀Aluminum Construction: Features knurled knobs that provide strong grips than alternatives, ensuring firm adjustments during intense welding operations. ❀Anti Slip Systems: Grooved inner caps with flexible silicone washers maintain optimal positioning even in high temperature working conditions. ❀Broad Compatibility: Safely fits various hoods types including 100 Series, flipping front, Fiber Metal hard hats, and Fiber Metal 2090 helmets for stability. ❀Anodized Durability & Visibility: Scratch resistant oxidized surfaces with gold coating enhances visibility in low light environments while ensuring long term wear resistance.