The Vevor welding sleeves are made from heavy-duty cowhide leather with flame-resistant Kevlar stitching for durable arm protection in high-heat work. Their 18" length helps cover from the wrist to the upper arm during welding, grinding, blacksmithing, woodworking, and other demanding tasks. Elastic wrist cuffs and adjustable upper-arm Velcro straps help create a secure and comfortable fit while keeping out sparks and debris. These sleeves are designed for reliable heat and spark resistance in both professional and workshop settings.