Space Bag Combo - Set of 6 (1 XL, 2 Large, 3 Medium) Vacuum removes air through one-way valve Reusable, air and water tight and multi-layered Sure-Zip slider ensures airtight seal that keeps bulky items compressed Set of 6 bags (different sizes)Sizes: Extra Large: 39 1/2"tall x 26 1/2"wide Large: 33 1/2"tall x 21 1/2"wide Medium: 22 1/2"tall x 18"wide