Material: Copper+stainless steel colour: Silver+ Note: Box Random color, don't accept the specified color. Package Contents: 40 sets x nail gasket set (10 sets of 10 x 14mm/10 x 19mm/12 x 14mm/12 x 19mm each) 1 x mounting rod 2 x Punch punch (3.5/4mm) 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. and : material makes the copper rivets and burrs feature resistance and not easy to break; The setter is made of stainless steel, the belt punch is also made of steel with good polished 40 Set Solid Copper Rivets and Burrs for Leather: 4 specifications, 10 sets Copper of each size + Permanent Nail Installation Tool x 1 + 3.5/4mm Alloy Round Punch x 2 tools in sufficient quantity, easy to fulfill your DIY needs Wide usages: the copper rivets and burrs set is a good helper to make or repair leather products such as belts, handbags, ropes, bags, leather ornaments and so on this copper 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.