Heat or Refrigerate your meals with ease using Stor-All's amazing line of Micro-Serve Food Containers. These uniquely designed containers feature a re-sealable opening that can be used to vent hot foods during Microwave preparation and that can be closed to create a secure seal for keeping your stored, refrigerated foods fresh. Another handy feature is the lid's built-in "Date Dial" that allows you to mark the date on stored foods. All Stor-All food storage products are made from BPA-Free virgin plastic, are Microwave, Dishwasher & Freezer Safe and stack or nest conveniently on your counter or in your cupboard.