Ideal for mailing room, parts departments, and shipping departments. Fast sealing just plug in and start sealing. Adjust timer to thickness of material. Will seal up to 4 mil double fold materials such as polyethylene, polyurethane, PVC, polypropylene, Mylar, PVA, Tyvek, Saran, and nylon. Poly-tubing sealer is equipped with a sliding blade to cut excess material 1/4" from seal. 110V. UL listed. Sealing width is 1/8". *Repair Kits for sealers include: 2 heating elements.