Feature: 1. Brass Material: DIY leather rivets are made of brass material, the surfaces are flat and smoother, no burrs, excellent workmanship, sturdy and durable. 2. Uniform Coating: The nickel coating is uniform and dense, with high hardness, and the coating can be heat treated to improve its hardness. 3. Curved Surfaces Design: Book binding screw adopts curved surfaces design, smoother, excellent workmanship, beautiful and durable. 4. Electroplating Treatment: Metal nail rivet studs adopts electroplating treatment, which is not easy to fade and paint, so that the surfaces of the product is bright and clean as new. 5. 200 Sets: There are a total of 200 sets of metal nail rivet studs, a large number to meet your use needs, can be used for a long time. Specification: Item Type: Book Binding Screw Material: Brass Package List: 200 x Book Binding Screw(Sets)