Insulated cable staple featuring high-impact hot melt bonded PVC. Minimizes the risk of cutting the cable insulation. Prevents a short circuit if wire insulation is nicked. PVC is highly visible with distinctive color. Color coded for size and application. Dielectric rating per ETL test 525777. 250V per millimeter. Made of 12-gauge carbon steel. Tumble deburred and rust inhibitor applied during tumbling.