Storage Bags Feature A Slider Closure With A Smart Zip Seal That Lets You Hear The Bags Close So You Can Feel Confident Your Food Is Protected. Expandable Bottom Creates A Flat Base For Easy Filling Even With Liquids. Filled Bags Stand Side By Side In Most Refrigerators, Freezers And Pantries. Microwavable Design Makes It Easy Defrost And Reheat Foods. Gallon-Size Storage Bags Are Perfect For Bulky Items, Foods, Supplies And More.