Make a seal on plastic sheets, bags, or flat tubing. Safely seal polyethylene and polypropylene plastics up to 5 mil thick. Sealers feature a timing knob for safe sealing. Simply set timing knob, press handle down on plastic, and remove when timing light indicates complete cycle. Heating element is hot only when sealing. Both sealers include 6-ft cord for 115 VAC. Heat sealer for 8" seals measures 14 1⁄2 x 3 1⁄4 x 7"; sealer for 12" seals measures 17 1⁄2 x 3 3⁄8 x 7".