Smart kitchen storage: Use rectangular food storage containers to keep your food pantry in order Durable food container: Unique, patented 4-hinge locking system has been tested for durability and can achieve long-lasting performance for up to 3 million uses No clutter, keep fresh: the enhanced locking system is 100% sealed, keeping food fresh for a longer time, 100% leak-proof and prevent unnecessary drips BPA-free food containers: let you store healthy and happy food with peace of mind Multifunctional kitchen storage: It can be used in microwave ovens and dishwashers, and can provide convenient all-in-one storage solutions in refrigerators, freezers, pantry and on the go