[Features] Arm cover made of natural bamboo yarn material that is cool and easy to use. (br) High thermal conductivity, excellent water absorption and moisture dissipation, accelerates sweat diffusion and evaporation, and easily absorbs vaporization heat, giving you a cool feeling. This arm cover stretches both vertically and horizontally, so you wont get tired. (br) It is long enough to protect your shoulders even with short sleeves. Uses: For working in factories, civil engineering, construction work, cargo and picking, agriculture, gardening, office work, such as desk work, driving cars, trucks, etc. Specifications: Thickness: 0.2 inches (5 mm); Total Length: 1.6 inches (40 cm); Width: 3.5 inches (90 mm); Total Length: 1.6 inches (40 cm); Width: 3.5 inches (90 mm); Material: Rayon (derived from bamboo), rubber, spun yarn; Set Contents: Note: