Features Product Performance: Paper fiber has excellent elasticity, wear resistance, corrosion resistance, heat resistance, mechanical strength, insulation properties and mechanical forming properties. Made of high quality materials, these washers have good insulating properties. Various Sizes: There are many different sizes in this set to meet your every need. Each set contains multiple washers that can be used for a long time, so you don't have to go to the store to find washers for a while. Quick Fix: If you're do-it-yourself and repairing small plumbing jobs at home, this insulating washer is a quick fix you don't need a plumber, and will come in handy when you need something like this in a hurry. Versatile: Flat washer sets are used in a wide variety of applications such as drywall, fencing, mounting fixtures and sheet metal. Red steel paper fiber washers can be widely used in electrical appliances, precision instruments, meters and so on. Easy to Storage:All gaskets are packaged in a plastic box for easy storage and compact design for easy portability and use. It can meet your various needs and is very practical in work and life. Features: 1.Made of premium material, these washers have good insulation performance. 2.There are many different sizes in this set that can meet your various needs. 3.Each set contains many washers that can be used for a long time, so you don't have to run to store looking for washers for quite a while. 4.All washers are well packed in a plastic box for convenient storage. Specification: Material: Red steel paper Size(outer dia.*inner dia.*thickness) & Quantity: 10*5*1mm   10pcs 10*6*1mm   10pcs 10*7*1mm   10pcs 12*8*1mm   10pcs 12*10*1mm   10pcs 14*10*1mm   10pcs 17*10*1mm   10pcs 18*14*1mm   10pcs 20*14*1mm   10pcs 20*15*1mm   10pcs 22*16*1mm   10pcs 24*16*1mm   10pcs 24*18*1mm   10pcs 20*12*1mm   20pcs Weight: 113g / 4oz (approx.) Package list: 1 box * Washers Package List