Use these cables between a battery bank and inverter, fuse or power center. They have flexible stranded UL Listed copper wire and 3/8" diameter lugs. Lug barrels are covered with glue-filled heat-shrink tubing. Cables are marked in red heat-shrink tubing for positive and white heat-shrink on black wire for negative. Append –R to the item number for a red cable with red ends (positive), -B for a black cable with black ends, or –W for a black cable with white ends (negative). For example, a red 4/0 cable with a 2-foot length would be 052-04002-R.