100 PERCENT AIR MOISTURE AND LIQUID TIGHT - FOOD STAYS FRESH FOR LONGER - STACKABLE DESIGN CAN CREATE UP TO 40 PERCENT MORE USABLE SPACE IN FRIDGES, FREEZERS, CUPBOARDS ETC - FOUR LOCKING HINGES FOR SECURING LID AND EASY OPENING - DISHWASHER, FREEZER AND MICROWAVE SAFE - 207MM X 134MM X 70MM - 3 COMPARTMENTS