ARM PROTECTION SLEEVES The cut-resistant sleeves are made of crossover of HPPE, nylon and spandex material. It has a certain anti-cutting ability and can reduce damage from sharp materials such as daggers, triangular scrapers, glass, and stone. Protect your arms from slashed, scratched, attached and burned What we want to say: These cut-resistant sleeves are designed to provide you an extra layer of protection, not super-sleeves. When wearing it, you still have to raise your safety awareness. It can't make you 100% safe from harm in all situations. TIPS: 1. Cut-proof cuffs provide users with the greatest degree of protection against cutting damage, not under the guidance of non-professionals to conduct kinds of testing, so as not to give people cause unnecessary harm 2.If the sleeve is dirty, you can use detergents such as Dishwashing liquid and laundry detergent to clean it. Do not use detergents such as bleach. It will damage the dye and the sleeve will change color. If the sleeve you bought is yellow, do not expose to the sun after washing, it will change color, but it will not affect the use 3. Please do not use under the temperature less than 30 ℃ or greater than 140 ℃, Sleeves are easily pierced near a moving jagged blade, it's not waterproof so don't use this glove for chemical protection