1. [Packaging Specification] Our products are made of high quality polyester, strong and durable, light and practical. There are 8 packs (navy blue, pink, gray, yellow),^ 2. [Excellent Design] The comfortable two-clip polyester cord is very strong, and the hook clip design prevents the earring cord from falling off. The adjustable buckle allows you to adjust the length to the size of your head and thus reduce back pain.^ 3. [Easy to use] Easy to use] Very easy to use. Secure it securely around your neck when you are not using it. Slip it onto your head and wear it gently like a necklace. It can keep you comfortable and keep your face clean and glowing.^ 4. [Wide application] The size is suitable for everyone, and the adjustable buckle makes it suitable for men and women of all sizes. Great for Nurses, Doctors, Teachers, Waiters, Bartenders, Dental Hygienists, Dentists, Restaurants, Key Workers, Medical Care, Government, Security, Police, etc.^ 5. HIGH QUALITY MATERIA: Colorful mask chain with adjustable made of high quality polyester fabric and polypropylene fiber rubber. Not easy to break and durable; to stay safe while looking great at the same time.