100% brand new and high quality. Made of premium material, these washers provide good insulation performance. There are many different sizes in this set that can meet your various needs. Each set contains many washers that can be used for a long time. So you don't need to run around looking for your washers for a long time. All washers are well packed in a plastic box for convenient storage. Specification: Material: Red Steel Paper Size (Outer Diameter * Inner Diameter * 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: about 113g Welcome to meet