Useful UH-VS140 Vacuum Sealer Bag Sealing System Fully Automatic Vacuum Sealing System, Strong Built in Piston Pump - No accessory required. Gentle and Normal Vacuum Levels, Moist and Dry Sealing Modes. Suitable for all vacuum bags and bag rolls up to 12" wide. Suitable for other vacuum canisters or air-tight vessels/accessories. Commercial Quality Sealer - Keeps food fresh up to 5x longer than conventional methods.