Material: The protective arm safety sleeves are made of HPPE, the strongest fiber in the world. The sleeves have excellent anti-cut performance, very sturdy and easy to put on, anti-cut, anti-abrasion, anti-slash, anti-skin irritation, UV protection. Breathable and flexible: High-performance polyethylene makes it highly breathable, elastic, comfortable and lightweight.provides maximum comfort in hot weather. Flexible operation, not too hard and no slippage. Suitable occasion: Perfect for construction site work, air conditioning, assembly line, cut protection, food service, glass handling, wood carving, knife handling, fishing, heat protection, warehousing, gardening, welding, etc. Size: 40CM. The average size fits most people's arm and fits either the right or left hand. The sleeves are not only suitable for men but also for women. Washing Tips: Don't worry about machine washing, the special fiber will maintain the strength of the material even after dozens of washing, but it will