Shrinkflex 3:1 Polyolefin Heatshrink Tubing is an effective and economical way to professionally finish the ends of any wire harness application. The over-expanded product configuration easily fits over the end of a connector, and shrinks down to 33% of its original diameter to fit snugly over the wires. With our wide assortment of bright colors, now you can attractively color coordinate the ends of our expandable braided sleeving.