Copper Wire Round Solid Bare Uncoated 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm 0.8mm to 5mm | eBay
Southwire 1250-ft 12-Gauge Solid Soft Drawn Copper Bare Wire (By-the-roll) in the Ground Wire department at Lowes.com
Southwire (By-the-Foot) 4-Gauge Solid SD Bare Copper Grounding Wire 10644390 - The Home Depot
18 AWG Bare Copper Wire, 7 Sizes | Remington Industries
100 Feet (30 Meter) - Insulated Solid Copper THHN / THWN Wire - 14 AWG, Wire is Made in the USA, Residential, Commerical, Industrial, Grounding, Electrical rated for 600 Volts - In Blue – THE CIMPLE CO