Vacucraft 4-Piece Vacuum Seal Lids Set Turn any existing pot, pan, mug, bowl, glass, or container into a vacuum container! Simply place the vacuum lid on any container and vacuum. It's as easy as 1, 2, 3. These lids are airtight, leak proof, and turn almost any container into a vacuum sealed container. Includes 6" Diameter Lid, 7" Diameter Lid, 9" Diameter Lid, and Hand Pump for Vacuum Sealing. Dishwasher safe. Set of 4 includes: small, medium, large and pump.