Features:OOTDTY Made from nylon material, with a tender surface, antioxidant and wear-resistant property, lightweight, and nice insulation. Can be used for a protracted time.It can efficiently serve as a supporting floor for the weight distribution and put on resistance of fasteners.It has preferrred insulation and corrosion resistance, and performs a protective and stable role. Durable and simple to install.Pack in a strong and clear garage box. Each length has clear labels. It is very convenient for you to choose the size, clean to hold and store.Widely used in mechanical equipment, chiefly to lessen pressure and friction, stop leakage, isolation, loosening or dispersion of pressure.Specifications:Material: NylonBox Size: Approx. 13x6.5x2.3cm/5.12x2.56x0.90inchTotal weight: 54.6g2mm Size: Approx. 5x2x1mm/0.20x0.08x0.04inch2.5mm Size: Approx. 5x2.5x1mm/0.20x0.10x0.04inch3mm Size: Approx. 6x3x1mm/0.24x0.12x0.04inch4mm Size: Approx. 8x4x1mm/0.31x0.16x0.04inch5mm Size: Approx. 10x5x1mm/0.39x0.20x0.04inch6mm Size: Approx. 12x6x1.2mm/0.47x0.24x0.05inch8mm Size: Approx. 16x8x1.5mm/0.63x0.31x0.06inch10mm Size: Approx. 20x10x2mm/0.79x0.39x0.08inch(Size=outer diameterxinner diameterxthickness)Package Includes:100pcs 2mm100pcs 2.5mm100pcs 3mm50pcs 4mm50pcs 5mm50pcs 6mm40pcs 8mm10pcs 10mmNote:Please enable 1-2cm mistakes thanks to guide measurement, make sure that you don't intellect earlier than you order. Due to the variation between various monitors, the picture won't reflect the actual color of the item.