UCEC 10 Piece Vacuum Seal Storage Bags Combo Sizes for Travel and Home, Small/Medium/Large/X-Large/XX-Large Package included: the combo package including size S/M/L/XL/XXL and 1 vacuum storage bags Comes with vacuum seal suction valve on each bag to draw out the air in the bag by vacuum cleaner or pump Store those bulky items and reduce volume up to 75% as seen on TV Airtight and waterproof seal keeps out moisture and dirt All the bags comes with new improved double zipper seal with material PA + PE