Zipper vacuum bags have a unique top that lets you reuse your bags after the initial seal. These sturdy 3 mil, puncture-resistant plastic bags work great for all of your big storage jobs. All bags are reusable, include a space to label the date/contents and are compatible with most major vacuum sealer brands. Each gallon bag has an easy-open tear notch and a pattern design that helps hold in moisture. These bags are up to the task - and all at a price that makes sense. For optimal results, use with the LEM MaxVac Sealer. Not compatible with chamber vacuum sealers. 20 count Exclusive pattern design helps seal in moisture Included space to label the date/contents