Brilliance 3.2 Cup glass rectangular storage container with 100% Leak-proof Guaranteed - airtight seal helps prevent spills and leaks. Crystal-clear, BPA-free lids and bases feature 360 degree clarity and splatter-resistant microwaving with built-in vents under latches. Stacks perfectly to save space and stay organized in the pantry or fridge and safe for the dishwasher, microwave and freezer. Glass base oven safe up to 450 degrees F.