AIE-500HR impulse sealers are designed for sturdy, airtight, and watertight seals on most heat sealable materials. These energy-efficient units only use power during the sealing cycle and plug into a standard 110V outlet—no special wiring required. Each machine comes fully assembled and ready to use, making it ideal for sealing polyethylene, polypropylene, polyurethane, polyvinylchloride, P.V.A., POLYFLEX, KEL-F, PLIOFILM, TIVAC, and SARAN. 1 extra element kit is included with all AIE hand impulse sealers.