Bare line: 99.9 % pure copper line. 1 roll x spool Copper Wire. handmade wires: We provide high -quality copper wires for all your production needs. Material: copper. A variety of uses: very suitable for electric breeding gardening, scientific courses, DIY jewelry production, earrings, bracelets, accessories, sculptures, chain buckles, gardening, horticultural, decoration, toys, etc.