Need to insulate some wires or connections? This Du-Bro heat shrink tubing is a handy solution. You get three tubes in the pack, each with a 3/8-inch diameter before shrinking. When you apply heat from a heat gun, soldering iron, or even a lighter, it shrinks down to about half its original size, forming a tight, protective seal. It's perfect for insulating electrical splices, covering plugs and connectors, and tons of other modeling or DIY projects. Du-Bro has been around since 1959 and is known for reliable, innovative products. This tubing is simple to use and gives you a clean, professional-looking result. A must-have for hobbyists, model builders, electricians, or anyone tinkering with electronics. Keep a pack in your toolbox for whenever you need a quick, secure insulation fix.