Whitmor's improved Spacemaker® vacuum bags have a durable multi-layer construction for maximum use and reuse. The zipper slider has been improved to slider prevent it from sliding off when sealing the bag. A patented no-cap valve prevents air from seeping in over time. These storage bags create an airtight barrier to protect against odor, mold, mildew, insects, and moths. Dimensions: 26.13 L x 19.38 W x 10.63 H inches. . Whitmor is a 4th generation family-owned and operated business. Since 1946, Whitmor has been dedicated to bringing organization home by creating products that simplify everyday life. Ensuring that those products are built with integrity, value, and innovation is our commitment to you. Whitmor