Deni 1740 Magic Vac Prestige Kit Semi automatic vacuum & sealing Patented vacuum chamber system Bag Cutter; Adjustable seal time unit includes 1 roll of 11 1/2" x 20 ft bagging, 20 8" x 12" perforated bags and 1 wide mouth jar attachment Patented 3 Ply bags are microwave, freezer, and boil in bag safe