VALUE SET: Set of 4 assorted stackable containers. Includes one of each size. Small 10.5oz, Medium 18oz, Large 26oz, and Extra Large 43oz;SAVE SPACE: Collapsible to 1/3 its original size for easy compact storage. Saves you 60% more space! No more cluttered Tupperware cabinet!;AIR VENT: The snap on lids create an airtight vacuum seal that will keep your food secured and fresher longer. Our lids also feature an air vent for convenient microwave heating.;FOOD GRADE SILICONE: FDA compliant and BPA free food grade silicone. Non-toxic, tasteless, odorless, non-stick and easy to clean.;Perfect for indoor food storage, work, camping, hiking, travel and more. Microwave, Freezer and Dishwasher safe.