Pure Copper Round Rod, 6mm, 7mm, 8mm, 10mm and 12mm T2 Rods for Mold

What the brand says

Sold as “Pure Copper Round Rod, 6mm, 7mm, 8mm, 10mm and 12mm T2 Rods for Mold Rivets and Plugging Holes, Solid Workmanship(10x100mm)”