Premium Aluminum Rivets: All of our pop rivets are made of high-quality aluminum and steel. They offer excellent performance in various environments due to their corrosion-resistant properties, ensuring durability without rusting or breaking.500pcs 14 Standard Sizes: This pop rivets assortment kit includes 500 pieces in 14 commonly used sizes to meet a variety of needs. The set contains: 45 pcs 3/32" x 1/4", 45 pcs 3/32" x 5/16", 35 pcs 1/8" x 1/4", 35 pcs 1/8" x 5/16", 40 pcs 1/8" x 3/8", 40 pcs 1/8" x 1/2", 40 pcs 5/32" x 5/16", 40 pcs 5/32" x 3/8", 40 pcs 5/32" x 1/2", 30 pcs 5/32" x 5/8", 30 pcs 3/16" x 5/16", 30 pcs 3/16" x 3/8", 25 pcs 3/16" x 1/2", and 25 pcs 3/16" x 5/8".Reinforced Labeled Case: The pop rivets are securely stored in a reinforced labeled case with a thickened latch and internal dividers. Each of the 14 sizes is organized in its own compartment for easy access, keeping the contents neat, orderly, and tangle-free.Great Performance: Featuring a self-plugging open-end design and compatible with standard rivet tools, these rivets have a smooth finish and strong holding power. They are easy to install and ideal for joining metal plates and pipes. Durable and resistant to deformation, these black rivets provide reliable performance for a wide range of applications.