Features 100% brand new and high quality. All washers are well packed in a plastic box for convenient storage.The specific size please see the description. Made of premium material, these washers have good insulation performance. 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. There are many different sizes in this set that can meet your various needs. 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