brand new in packaging from box (see photo) (shipped wrapped this way) set of 4 containers ------------------- Perfect storage conditions for all your favorite vegetables! Top food scientists from the University of Florida and Tupperware have researched the storage of fruits and vegetables extensively to develop a line of intelligent containers.​ FridgeSmart® Containers use Tupperware's ACE (Atmosphere Controlled Environment) system: special three-way vent and custom base help regulate the atmosphere inside the container by balancing the flow of oxygen coming in and carbon dioxide going out. ​ Four-piece Starter Set includes two 1¾ qt/1.8 L Small Deep containers, one 1¾ qt/1.8 L Medium container, and one 1-gallon/4.4 L Medium Deep container.