The 3M Speedglas G5 Headband Cushion Part is an accessory to be used with 3M Speedglas G5 Series Welding Helmets. This component is designed to replace the original part if it becomes damaged or worn from use.Welding is tough work — and it's hard on you and your equipment. If the 3M Speedglas G5 Headband Cushion Part on your compatible welding helmet becomes damaged or worn out from use, don't worry. Reach for this replacement part and stay in the action.