FreshWorks produce saver containers help keep produce fresher, longer* (*in FreshWorks containers vs. produce left on the counter) Countertop produce keeper features FreshVent technology that regulates flow of oxygen and carbon dioxide Crisp Tray keeps moisture away from food to help reduce spoilage Made of Tritan plastic, the containers are stain- and odor-resistant, which keeps them looking new Modular design saves space on your countertop; containers are BPA-free and top-rack dishwasher safe Set includes one 5.9-cup base plus lid; one 10.8-cup base plus lid; and one 17.6-cup base plus lid