ITEM NAME:1000 Bronze Copper Round Rivet Spike Studs Spots DIY Rock Punk 2.5mm B8I1 1000 Bronze Copper Round Rivet Spike Studs Spots DIY Rock Punk 2.5mm B8I1 Material: Copper Size: approx. 3 x 2.5 mm.Get them and enjoy the DIY pleasure! Material: Copper Size: approx. 3 x 2.5 mm. Weight: approx.