Usage Tips:Durable: Our solid copper is a strong & durable metal that resists corrosion and wear. When used in rivets, it creates a long-lasting bond that can withstand heavy loads and constant use. Dimensions: 6 sizes available (Head cap diameter x Rivets overall length) Package List: 20 set copper rivets 12x14mm(Head cap diameterx Rivets overall length) and 20 set 12x19mm(Head cap diameterx Rivets overall length), installation tool, and round hollow punch. Security: Because setters are hammered down to create a secure bond, they're less likely to loosen or come apart over time. This makes them perfect for use in applications where safety and security are . Easy to Use: The copper rivets are designed to be easy to use, whether you're a seasoned or a beginner. With a simple installation tool and intuitive design, you'll be to confidently use our riveting hardware. Widely Applied: This brass rivets and burrs set works well in making or repairing leather products, such as belts, handbags, ropes, bags, leather ornaments, and so on, bringing you much convenience. Color: As Shown Material: copper Package Contents: 1 x set leather rivets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.