Store those bulky items and reduce volume up to 75 percent. Vacuum storage bags can be used as storage, handling, shipping, moving or traveling need. x50 Quantity Medium Vacuum Storage Bags at 28x20 inches (70x50 centimeters). Compatible with any standard vacuum tube attachment. Store away your large items like duvet covers, bed sheets, towels, and blankets. Triple your storage space. Ideal solution for adding more storage space to your wardrobes, closets, garages, basements, lofts, and suitcases. New and improved PA+PE material contains 25% more raw material than similar bags for better durability. Double Seal opening technology keeps your bag airtight and all the contents as fresh as the day you stored it. Super easy to seal yourself with the double seal zipper. 99% of air leak issues are due to the zipper seal not closing properly. Please follow the instructions to ensure the blue colored zipper seal is sealed tight.