Ladder shrink tube from Graphic Products comes in five sizes and slips over the ends of wire or tubes. It shrinks tight with a heat gun. The ladder-style tubing was created for the DuraLabel Toro labeler and printer that enables users to customize and print messages on the shrink tube. The shrink tube has an estimated interior life of two years, service temperature of -67 to 257 degrees F and minimum shrink temperature of 185 degrees F. The white shrink tube is available in 1/8 by 1.97 inches, 3/16 by 1.97 inches, 1/4 by 1.97 inches, 3/8 by 1.97 inches and 1/2 by 1.97 inches. 888/326-9244; www.GraphicProducts.com.