12" Impulse Sealer With Cutter For Poly TubingIdeal to seal and trim poly tubing in one step. Can seal poly tubing up to 10 mil thick with a 2mm 2. 7mm seal width. The sliding knife may be used to trim premade poly bags or make bags from poly tubing. The cut is 1 4" from the seal. Very easy to operate. Set the timer, insert bag tubing between the sealing bars, press down, and slide the knife across the top. Works in conjunction with our line of poly tubing dispensers (sold separately).