This 7 size aluminum blind rivets assortment kit contains 500 pieces in total, including 3/16''x5/8''(4.8mm x 16mm) - 50pcs 3/16''x1/2''(4.8mm x 12.7mm) - 50pcs 5/32''x1/2''(4mm x 12.7mm) - 80pcs 5/32''x3/8''(4mm x 10mm) - 80pcs 1/8''x1/2''(3.2mm x 12.7mm) - 80pcs 1/8''x3/8''(3.2mm x 10mm) - 80pcs 1/8''x1/4''(3.2mm x 6.4m) - 80pcs All the rivets are made of high-quality aluminum alloy, which is durable and rust-resistant. The kit is perfect for repairing or replacing blind rivets on various materials, such as aluminum, steel, and plastic. The rivets are easy to use and can be installed with a standard riveting tool. With this versatile assortment kit, you can have the right rivets for any job at hand, and save time and money on buying separate kits.