Features Premium Material: Crafted from high-quality red steel paper fiber, these washers deliver excellent insulation performance, ensuring durability and reliability. Versatile Assortment: With 14 different sizes available, this kit offers a wide range of options to meet various ing and insulation needs, providing versatility and convenience. Long-lasting Supply: Each set includes 150 washers, ensuring a sufficient supply for multiple uses, saving time and effort in frequent restocking. Convenient Storage: All washers are neatly organized in a plastic box, allowing for easy access and tidy storage, enhancing convenience and organization. Protection: The washers are well-packed to prevent damage and deformation, ensuring long-term usability and protection. Features: 1、100% and . 2、Made of premium material, these washers have good insulation performance. 3、There are many different sizes in this set that can meet your various needs. 4、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. 5、All washers are well packed in a plastic box for convenient storage. Specification: Features: 100% and . Made of premium material, these washers have 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 have to run to store looking for washers for quite a while. 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