ARY VacMaster VP321 Chamber Vacuum Packaging Machine with Two 17 1/4" Seal Bars Free Lift Gate Delivery on large units Included to get unit off the truck only. Keep air out by sealing in the freshness of your foods These bags can be used with any external strip, suction-type machine This improves the packaging of liquid-rich foods like fresh meat and fish The 8" side of this bag is the open end, for sealing.