HPPE, Spandex, Nylon Suitable Size: Our cut-resistant sleeves measure about 20 x 9.5 cm/7.9 x 3.7 inches (L x W) before stretching, the arm guards are average size, suitable for most people's arms, and can be worn on both left and right hands. In addition, they are comfortable to wear, give a cool feeling to the arms, and are washable and reusable. Well-made: Our 5-level cut-resistant arm guards are made of HPPE, nylon and spandex materials, the arm guards are 15 times stronger than steel, and the high-performance polyethylene makes them highly breathable, elastic, lightweight, cut-resistant and comfortable to wear, helping to protect forearms from minor burns and high temperatures. Five-level protection: The wear-resistant safety arm guards have five levels of cut, abrasion and tear resistance, which can effectively protect human hands from sharp objects such as knives, providing heat and cut protection from knuckles to shoulders. Comfortable to Wear: These arm guards are breathable and elastic, providing you with a comfortable wearing experience, and the light weight will hardly put a burden on your arms; After use, they can be easily washed and dried naturally for next use.