The Rubbermaid Brilliance Glass 6-Piece Round Container Set is 100% airtight and leak-proof, stain-resistant, odor-resistant, and oven-safe for 4x protection. The unique dual-latch locking system forms a seal that helps food stay fresh. Whether you’re packing up leftovers to stash in the fridge or taking soup to the office for lunch, there’s no need to worry about spills. And for a further mess-free experience, special vents ensure splatter-free microwaving when the lid is on and the latches are open. The lids on the circular containers are made with StainShield® plastic to resist stains and odors, and with the Smart Lid System, they fit across multiple Brilliance containers. Stackable for saving space, the containers are BPA-free, and microwave-, dishwasher, and freezer-safe, too. Plus, the glass bases are oven-safe up to 450 degrees F. For all your food storage needs, the Rubbermaid Brilliance Glass 6-Piece Round Set is the clear choice.