Features: * brand new and high quality *Made of high quality material, and practical to use *250 black plastic flat ring plain weave washer gasket classification kit M2-M8 *Black flat washer classification kit. *7 different sizes of flat washers to meet your different needs. *Easy to use and store. Specification: *Material: Plastic *Colour: Black(As pictures show) *M2: Inner Diameter: 2mm, Outer Diameter: 5mm, Thickness: 1mm (50)(Approx.) *M2.5: Inner Diameter: 2.5mm, Outer Diameter: 5mm, Thickness: 1mm (50)(Approx.) *M3: Inner Diameter: 3mm, Outer Diameter: 8mm, Thickness: 1mm (50)(Approx.) *: Inner Diameter: 4mm, Outer Diameter: 9mm, Thickness: 1mm (25)(Approx.) *M5: Inner Diameter: 5mm, Outer Diameter: 10mm, Thickness: 1mm (25)(Approx.) *M6: Inner Diameter: 6mm, Outer Diameter: 12mm, Thickness: 1.2mm (25)(Approx.) *M8 Inner Diameter: 8mm, Outer Diameter: 16mm, Thickness: 1.4mm (25)(Approx.) *Quantity: 250 Package Contents: 50*M2 Flat Washers 50*M2.5 Flat Washers 50*M3 Flat Washers 25* Flat Washers 25*M5 Flat Washers 25*M6 Flat Washers 25*M8 Flat Washers Note: 1.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. 2.Please allow slight manual measurement deviation for the data. brand new and high quality Made of high quality material, and practical to use 250 black plastic flat ring plain weave washer gasket classification kit M2-M8 Black flat washer classification kit. 7 different sizes of flat washers to meet your different needs.