Airtight Containers with Four-Sided Locking System
Lock&Lock's Classic food-storage containers feature an innovative four-sided locking system for an airtight seal and watertight storage so food stays fresh longer and there's no messy leaks or spills to worry about. The four sides of the locking system promote an airtight seal due to equal pressure to all four sides, along with the hollow-center silicon sealing ring that makes it possible to lock tightly (the silicone sealing ring can be removed for cleaning if necessary).
Made of high-quality BPA-free plastic, Lock&Lock's Classic food-storage containers not only offer an airtight and watertight seal, but they're also durably built for unbreakable, long-lasting use and hygienic, food-safe storage.
The containers can withstand temperatures ranging from -4 degrees F to 210 degrees F, making them suitable for use in the freezer, microwave* (reheating only), and dishwasher (top-rack). The base and lid should NOT be used in the oven, under browning elements, or on the stove top.