Feature: 1. Nylon plastic material, high toughness, not easy to break, long service life. 2. M2M10 washers of various specifications to meet various using needs. 3. Provides stable protection for the surface of the connected parts. 4. Can be used to spread a load, and prevent damage to the surface being fixed, and prevent leakage. 5. All washers are packed in a plastic storage case, convenient to carry and use. Specification: Item Type: Nylon Washer Set Material: Nylon Optional Color: Black, White Model & Quantity: M2, M2.5, M3, M4, M5, M6, M8, M10, 500pcs in total M2x5x1 100pcs M2.5x5x1 100pcs M3x6x1 100pcs M4x8x1 50pcs M5x10x1 50pcs M6x12x1.2 50pcs M8x16x1.4 40pcs M10x20x2 10pcs. Package List: 500 x Nylon WasherNylon plastic material, high toughness, not easy to break, long service life. M2M10 washers of various specifications to meet various using needs. Provides stable protection for the surface of the connected parts. Can be used to spread a load, and prevent damage to the surface being fixed, and prevent leakage. All washers are packed in a plastic storage case, convenient to carry and use.