Features These gaskets are made of nylon material, aging and corrosion resistant, good toughness, long service life. The included plastic box has multiple compartments in which these washers are sorted by size and you can easily find the right one. The washer is used to reduce friction, prevent leakage, insulate, prevent loosening or distribute pressure. Provides stable protection for the surface of the connected parts. This kit comes with washers in 7 sizes to meet your different needs. Specification: Item Type:Washer Material: nylon. Colour: white. Quantity: 350 pieces. Features:These seals are made of nylon material, aging and corrosion resistant, good toughness, long service life.This kit comes with washers in 7 sizes to meet your different requirements.The washer is used to reduce friction, prevent leakage, insulate, prevent loosening or distribute pressure.Provides stable protection for the surface of the connected parts.The included plastic box has multiple compartments that keep these washers sorted by size and They allow you to find the right one. Package list: 50 x M2 washers. 50 x M2.5 washers. 50 x M3 washers. 50 x M4 washers. 50 x M5 washers. 50 x M6 washers. 50 x M8 washers. 1 x storage box Package List