Features ???? HIGH QUALITY: The washers are made of high quality red steel paper material, anti-corrosion and durable. Good insulating properties, solid structure, high strength, high hardness, corrosion resistance, strong electrical and thermal conductivity. Durable and can be used repeatedly. ???? PRACTICALITY: O-type gasket is easy to install, isolating steel bolts from other contact surfaces. The smooth surface reduces friction between fasteners, spreads the load and prevents damage to the fixing surface. ???? EASY TO IDENTIFY: These sealing flat gaskets are packaged in compartmentalised plastic boxes, the bright red gaskets are easy to identify. Neatly categorised and quick to store. You can easily find the required gasket specifications and improve work efficiency. ???? SUFFICIENT QUANTITY: This set of red steel paper gaskets has a total of 600 gaskets in 12 different sizes, which is a sufficient quantity. Worn or damaged gaskets can be replaced quickly and easily to meet the various needs of different projects. ???? WIDE APPLICATION: Copper plug gasket set is ideal for water plugs, oil pan plugs, fuel and hydraulic fittings, motherboards, circuit boards and printed circuit boards, which are widely used in a variety of electrical connections for transformers, appliances, electronics industry, automobiles and ships. Specification:Condition: 100% Brand New Item Type: Red Steel Paper Washer Material: Red Steel Paper Color:Red Size: Approx.23x10x3cm/9.1x3.9x1.2in Weight: Approx.163g/5.7oz Application: Applicable to all kinds of transformer, electrical appliances, electronics industry. Include: 160pcs: 10x5x0.8mm / 0.4x0.2x0.0in 100pcs: 12x6.5x0.8mm / 0.5x0.3x0.0in 60pcs: 16x8x0.8mm / 0.6x0.3x0.0in 80pcs: 16x10x0.8mm / 0.6x0.4x0.0in 40pcs: 19x12x0.8mm / 0.7x0.5x0.0in 40pcs: 20x12.5x0.8mm / 0.8x0.5x0.0in 20pcs: 22.5x14x0.8mm / 0.9x0.6x0.0in 30pcs: 22x16x0.8mm / 0.9x0.6x0.0in 15pcs: 25.4x17.5x0.8mm / 1.0x0.7x0.0in 20pcs: 27x20x0.8mm / 1.1x0.8x0.0in 20pcs: 32x22x0.8mm / 1.3x0.9x0.0in 15pcs: 32x24x0.8mm / 1.3x0.9x0.0in Weight: Approx.163g/5.7oz Package List:160pcs 10x5x0.8mm100pcs 12x6.5x0.8mm      60pcs 16x8x0.8mm       80pcs 16x10x0.8mm       40pcs 19x12x0.8mm       40pcs 20x12.5x0.8mm    20pcs 22.5x14x0.8mm     30pcs 22x16x0.8mm       15pcs 25.4x17.5x0.8mm    20pcs 27x20x0.8mm          20pcs 32x22x0.8mm          15pcs 32x24x0.8mm  Note:1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List 160pcs 10x5x0.8mm 100pcs 12x6.5x0.8mm 60pcs 16x8x0.8mm 80pcs 16x10x0.8mm 40pcs 19x12x0.8mm 40pcs 20x12.5x0.8mm 20pcs 22.5x14x0.8mm 30pcs 22x16x0.8mm 15pcs 25.4x17.5x0.8mm 20pcs 27x20x0.8mm 20pcs 32x22x0.8mm 15pcs 32x24x0.8mm