Features [High Quality]--100% brand new and high quality. [Good Insulation Performance]--Made of premium material, these washers have good insulation performance. [Multiple sizes]--There are many different sizes in this set that can meet your various needs. [Durable]--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. [Convenient to Storage]--All washers are well packed in a plastic box for convenient storage. Features: [High Quality]--100% brand new and high quality. [Good Insulation Performance]--Made of premium material, these washers have good insulation performance. [Multiple sizes]--There are many different sizes in this set that can meet your various needs. [Durable]--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. [Convenient to Storage]--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