1. [Washer Assortment Kit] - Nylon washers in various sizes are suitable for M2, M2.5, M3, M4, M5, M6, M8, M10 screws / bolts which are frequently used in industrial sector to meet to your different needs^2. [Sturdy and Durable] - The spacer is made of high quality nylon material and has good insulation flame resistance and high temperature resistance. Flexible and lightweight washer with great flexibility for good impact resistance^3. [Better protection] - White plastic flat washers can distribute the load and increase the contact area of the bolt or nut with the workpiece surface to prevent surface wear.^4. [Easy to use] - Round washers are easy to install. Comes with a plastic box with compartments to easily distinguish between different sizes and avoid spillage, easy to use^5. [Wide application] - Insulating washers have stable performance and are insensitive to air, water and temperature. Suitable for workshops, industrial maintenance, cars, doors, windows, appliances, bearings, pumps, drain plugs^