[High-quality Cooper Rivet Burr]Made of top-glass copper with corrosion resistance and rust resistance, durable and solid, integrated molding and not easy to break. And the matching washers can make installation much tighter [Product Dimension]Rivet-10 x 12 x 3.3mm . copper rivet is perfectly matched the wash. [Easy to ] punch the hole in leather with round punch.put the bottom surface into the pre-drilled hole and the burr into the bottom rod. the hole of the setter to tighten and fox the burr. Cut off the redundant bottom bar and reserve a convex position of 2-3mm.Put the head of setter on rivet then heat it until the extra rivets are knocked flat. Work Done! Simple to install. [Widely Application]Work great on repair all kinds of leather products. perfect for courier bags, strap, purse, belts, wallets, collars,leather belts, halters,clothing, bracelets, and DIY leather-crafting projects, . Colour:red Material:copper Package Contents: 1 set * Rivet Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.