WirePath™ insulated square cable nails have high-impact hot melt bonded PVC. Minimizes the risk of cutting the cable insulation. Prevents a short circuit if wire insulation is nicked. Keeping them in the tool bag is the best on-hand support for running cables and wire in the attic or basements. They are designed for maximum speed, flexibility and safety, letting you easily insert and arrange cables as you need without damage.