Keep your products fresh for longer! Storage of fruits and vegetables has been extensively researched by top food scientists from the University of Florida and Tupperware to develop a range of smart containers. Tupperware AKO (Atmosphere Controlled Environment) system creates the optimal environment to keep fruits and vegetables fresh for longer. Greenhouse Series Containers feature a special three-way ventilation system that helps regulate the atmosphere inside the container by balancing the flow of oxygen in and carbon dioxide out. The slider mechanism on the lid can be used in 3 different positions: 1- Half Open: When the slider mechanism is aligned with the semicircle in the pictogram, the small opening in the seal opens for light ventilation. 2- Closed: When the slider mechanism is aligned with the fully engraved circle in the center of the pictogram, both openings in the seal are closed. 3- Fully Open: When the slider mechanism is aligned with the hollow, shiny circle on the pictogram, the large opening in the seal opens for full ventilation. The lid is easy to open thanks to the tab in the corner. A built-in grill underneath the base keeps contents away from moisture and allows air to circulate around the food. When not in use, they can be nested for compact storage, even between different sizes. Product Quantity - 1 x 4.4 L Sera Series High Bodied Container - 1 x 1.8 L Sera Series High Bodied Container - 1 x 1.8 L Sera Series Short Bodied Container - 1 x 800 ml Sera Series Short Bodied Container - 4.4 L capacity Sera Series High Bodied Container The container can store fruits and vegetables such as: Apples, artichokes, beets, bell peppers, broccoli, carrots, cauliflower, celery, citrus fruits, endive, fennel, lettuce, red peppers, pears, peas, bell peppers, spinach, sweet potatoes, turnips, zucchini?... - The 1.8 L capacity Greenhouse Series High Stem Container can store fruits and vegetables such as: Cabbage, beets, Brussels sprouts, fresh herbs, ginger, green beans, artichokes, kohlrabi, lemon or lime, mushrooms, peas, radishes, turnips, white/red grapes... - The 1.8 L capacity Greenhouse Series Short Stem Container can store fruits and vegetables such as: Asparagus, beets, blueberries, Brussels sprouts, carrots, celery, cherries, peppers, figs, fresh herbs , ginger, green beans, artichokes, kohlrabi, leeks, lemon or lime, mushrooms, peas, radishes, raspberries, spring onions, strawberries, turnips, white/red grapes, zucchini... -800ml capacity Sera Series Short Stem Container , can store fruits and vegetables such as: Blueberries, cherries, peppers, figs, fresh herbs, ginger, mushrooms, radishes, raspberries, strawberries, white or red grapes... ? 1.8 L Greenhouse Series High Bodied Container Dimension: 19 x 14 x 13.5 cm H. ? 1.8 L Sera Series Short Bodied Container Dimensions: 28.5 x 19 x 7 cm H. ? 800 ml Sera Series Short Bodied Container Dimensions: 18.8 x 14.2 x 7 cm H. ? 4.4 L Sera Series High Bodied Container Dimensions : 28.5 x 19 x 13.5 cm H.