AIE Hand Impulse Sealers are UL listed. They are all metal sealers and are blue in color. They are available in 8", 12" & 16" lengths with a 2mm or 5mm wide seal. All are equipped with a sliding blade that cuts excess material a quarter inch from the seal. Works great for trimming bag length or sealing poly tubing. Included is a manufacture's parts kit consisting of 2 elements and 1 PTFE Non Stick cover. AIE is the American International Electric Brand and are manufactured in ISO-9001 Certified facilities. Comes with cutter and magnetic hold.