Southwire SIMpull 1-ft 3/0-AWG Stranded Black Copper THHN Wire (By-the-foot) in the TFFN & THHN Wire department at Lowes.com
WindyNation 2-0-Gauge 15 ft. Black/15 ft. Red Welding Cable Kit (Includes 10-Pieces of Cable Lugs and 3 ft. Heat Shrink Tubing) 20G-15B15R-10LG38-HS - The Home Depot