versatile heat shrink tubes for use in a wide variety of applications in automotive marine electrical industrial home and more 160 assorted pieces in 8 sizes and 5 colors easily shrinks with a heat gun or other heat source protects solder joints and wires forms a secure bond over smooth and irregular shapes excellent for insulation strain relief abrasion shielding and corrosion protection shrink tubes made of polyolefin material ideal for color coding and bundling 2:1 shrink ratio daimeter/quantity 3/32....25 1/8.... 35 3/16....35 1/4.....35 3/8.....10 1/2.....10 5/8......5 3/4......5