Pure Copper Round Rod, 0.3mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.2mm Solid

What the brand says

Sold as “Pure Copper Round Rod, 0.3mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.2mm Solid Fabrication of T2 Sheet Metal Plate from 50mm to 300mm(0.3x300x300mm)”