Insulation tape is a type of electrical tape used primarily to insulate electrical wires and prevent short circuits. It is typically made from a flexible plastic material, often PVC, that is resistant to electrical currents, moisture, and abrasion. The red insulation tape, in particular, provides a distinctive color coding that makes it easily identifiable in various settings.

Width is the measure of the tape from one side of the roll to the other. Wide rolls make excellent packing tape because they cover more surface area. They are usually sturdier than narrow tape rolls. If you need tape for packaging or covering something up, choose the tape that provides the most surface contact with the material that you are taping up. This is especially important because post offices will note if your adhesive is insufficient. Moreover, if your packaging falls apart during transit, the shipping service may be unable to ship it.