Dsg canusa 2 1 heat shrink tubing set dsg canusa 8011000990 this set from dsg canusa includes 135 pieces of 2 1 heat shrink tubing in a variety of diameters and lengths this kit is ideal for use by electronics enthusiasts as well as in the laboratory and can provide protective covering for a wide range of components against corrosion and chemicals dsg canusa 8011000990 heat shrink tubing set 2000 2 1 135pcs