Feel It Lock! 12 Bags - 13 in. x 15 5/8 in. . Unique interlocking zipper...Feel It Lock! Write-on label. Microwavable when defrosting and reheating . Introducing Other Ziploc® Brand Products - Available in Freezer, Storage, Sandwich and Snack bags. Also look for NEW Ziploc® brand Slide-Loc bags and Ziploc® Containers.