Mark N Guard is made with heavy-duty ABS plastic which acts as a protector over delicate wires in your outlet. With this tough material you can cut out a hole on your drywall without worrying about damaging the wires. First, place a Mark N Guard in every electrical outlet box. As you hang the drywall over the box, the pointed tip of the Mark N Guard will penetrate the drywall sheet to show you the center of the electrical box where you need to cut around. No more measuring, no more mistakes, and no more damages cutting out a hole on your drywall is done in less time.
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