1000pcs Pop Rivets Set - This pop rivets assortment kit with washers set includes 14 most used sizes for your various needs. Including 50pcs 3/32” x 1/4”, 50pcs 3/32” x 5/16”, 35pcs 1/8” x 1/4”, 40pcs 1/8” x 5/16”, 50pcs 1/8” x 3/8”, 50pcs 1/8” x 1/2”, 45pcs 5/32” x 3/8”, 35pcs 5/32” x 1/2”, 30pcs 3/16” x 5/16”, 30pcs 3/16” x 3/8”, 30pcs 3/16” x 1/2”, 30pcs 3/16” x 5/8”, 15pcs 1/4” x 3/8”, 10pcs 1/4” x 1/2”, total 500 pcs. It also comes with 500 pcs 5 sizes backup washers. High Quality Material - These aluminum rivets and washers are made of high-quality aluminum and 304 stainless steel, which has excellent corrosion resistance, anti-rust and anti-oxidation properties in harsh environments, ensuring long-term use of the rivets and washers. Enhanced Stability with Washers - Designed specifically for pop rivets, this rivet backup washers provide extra support for fastening rivets when facing oversized holes. Including 100pcs 3/32” x 5/6”, 175pcs 1/18” x 3/32”, 80pcs 5/32” x 15/32”,