Material: The Washer is made of high-quality nylon material, with excellent insulation, abrasion resistance,corrosion resistance, thermal insulation and non-magnetic properties, and light weightSize and Quantity: One set includes 100 pieces M10 Nylon Washers, the most commonly used metric type, enough to last you a long timeFunction: Our Nylon Washer are mainly used for pressure reduction and friction,isolation,prevention of leakage,loosening or dispersing pressure. It has a durable material and construction for long-term useWide Application: Our Plastic Black Nylon Washer can be used for all kinds of household appliances, furniture, various electronic instruments, computers, etc.Convenient Storage: The washers are neatly organized in a reusable plastic case, ensuring easy access and keeping them organized