Designed by TupperWare to keep fruits and vegetables fresh for longer by regulating airflow and moisture levels. Features 3-way venting to balance oxygen and carbon dioxide levels. Built-in grid to keep produce away from condensation. The medium FridgeSmart containers have a 7 cup capacity and are dishwasher safe. Receive one small FridgeSmart container (4.5 cup capacity) FREE with purchase. Excellent condition; no cracks. Comes from a pet friendly, non-smoking home.