- Assorted kit of 150 flat copper washers, made from high-quality material for maximum durability - Provide excellent electrical and thermal conductivity, ideal for hydraulic and electrical connections - Includes sizes M5, M6, M8, M10, M12, M14, M16, M18, M20, and M22, covering multiple sealing needs - Resistant to high temperatures (up to 1083 °C), perfect for engines, generators, machinery, and plumbing systems - Prevent leaks, reduce friction between fasteners, and ensure efficient sealing in drain, water, and fuel plugs - Smooth surface that facilitates installation and improves insulation, preventing loosening and pressure leaks - Compartmentalized storage box to keep washers organized and easy to transport - Suitable for automobiles, marine applications, appliances, and DIY projects - Professional and versatile solution for maintenance, repair, and hardware projects