Up for auction is a rare item by Tupperware. I believe these containers are called First In First Out Containers. The containers are filled from the removable base so the food that goes in first, gets used first. These items are new. I took them out of the plastic for the photos, but they will arrive to you new in the plastic. Great for storing snacks and small food items. This auction includes five Tupperware First In First Out containers (1-size one, 2-size two, 1-size 3, and 1-size 4- Similar to the way modular mates stack together) Please email me with any questions.