Features: *Washers Set: Nylon Washers in Various Sizes M2, M2.5, M3, M4, M5, M6, M8, M10 are suitable for screws / bolts which are widely used in the industrial field to meet your various needs. *Washer range are made of durable nylon, good toughness, abrasion resistance, insulation, environmentally friendly materials. *Good workmanship: The insulated washers have a stable performance and are insensitive to air, water and temperature. Flat washers are mainly used to relieve pressure and reduce friction. *Plastic storage box: pre-classified for quick identification and protection against loss. Very convenient to use. *Wide Uses: Perfect for electrical connections on household and commercial appliances, automotive and marine applications, such as workshops, industrial maintenance, automobiles, doors, appliances, warehouses, pumps, drain plugs. Specification: *Material: nylon plastic *Color: Black(As Pictures Show) *Size: M2: inner diameter: 2mm, outer diameter: 5mm, thickness: 1mm (100pcs) M2.5: inner diameter: 2.5mm, outer diameter: 5mm, thickness: 1mm (100pcs) M3: inner diameter: 3mm, outer diameter: 8mm, thickness: 1mm(100pcs) M4: inner diameter: 4mm, outer diameter: 9mm, thickness: 1mm (50pcs) M5: inner diameter: 5mm, outer diameter: 10mm, thickness: 1mm (50pcs) M6: inner diameter: 6mm, outer diameter: 12mm, thickness: 1.2mm (50pcs) M8 inner diameter: 8mm, outer diameter: 16mm, thickness: 1.4mm (40pcs) M10 inner diameter: 10mm, outer diameter: 20mm, thickness: 2mm (10pcs) Package Included: 1*box of 500pcs washer Brand new and high quality. Convenient to use. Durable and practical. Made of high quality material, durable and practical to use. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data.