Make everything about your food storage purely better with the Lock and Lock Purely Better 12 oz. Rectangular Food Storage Container.Featuring a patented 4-hinge locking system for freshness that lasts longer, Lock and Lock Purely Better storage containers are constructed from made-to-last Tritan that is 2X as hard as traditional plastic. The airtight and leakproof lid has been durability tested to last up to 3 million uses, and Lock and Lock Purely Better containers are microwave, freezer, and dishwasher safe. Always BPA-free, Lock and Lock Purely Better containers are stain and odor resistant, easy to clean, and come with a Lifetime Limited Warranty for healthy, happy, no-worries food storage.Lock in airtight and leakproof performance with freshness that lasts with the Lock and Lock Purely Better 12 oz. Rectangular Food Storage Container.