Composed of electrically conductive black polyethylene and great for shielding electrical cords. Only 4 mil thick, it won't hold up to tearing, heat or abuse, but it's tough enough to do a great job on the lamp cord by your bed, the air conditioner cord, or even cables in your car. Use a grounding cable, and please be careful when handling electrical cords. Specify desired length. Thinner means less material is needed.
Less material means less weight and lower cost.
Easy to handle, too. Cut it with a scissors, shape it with your fingers, tape it in place. Flexible and tough, with excellent corrosion resistance, it can be used indoors or out. Near-zero magnetostriction means it can be flexed over and over without losing its shielding properties. Wrap wiring, pipes, switches, or magnets.