TOOGOO(R) 1000 Bronze Copper Round Rivet Spike Studs Spots DIY Rock Punk 2.5mm Material: Copper Size: approx. 3 x 2.5 mm Condition: 100% new Weight: approx. 29 g Quantity: 1000 pcs Conversion: 1 mm = 0.0394 inch, 1g = 5 carat