(10) 2/0 or 1/0 Gauge Blue 1.5" x 2" Heat Shrink Tube 4 Ring Terminals Tubing (10) Sky High Car Audio heat shrink tubes. These are made and printed in the USA 2:1 ratio. These heat shrinks will fit onto 2/0 and 1/0 and shrink tightly onto the wire and ring terminal. We have multiple colors, please see our Amazon store for our different options