Features Premium Quality Material - Crafted from high-grade steel and fiber, ensuring excellent insulation performance for safe and reliable applications Comprehensive Size Variety - Includes 14 different sizes in 150 pieces, accommodating a wide range of projects and specific requirements effortlessly Long-Lasting Supply - Ample quantity in each kit means you won’t need to rush to the store frequently, providing convenience and peace of mind for your projects Convenient Storage Solution - All washers are neatly organized in a durable plastic box, making it easy to find the right size when you need it Versatile Application Use - Perfect for home improvement, automotive, and electrical projects, these washers enhance safety and efficiency in various applications 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