100% Leak-proof Guaranteed - airtight food storage container seal helps prevent spills and leaks;Crystal-clear, BPA-free Tritan lids and bases feature 360 degree clarity; Safe for the dishwasher, microwave and freezer;Built-in vents under latches allow splatter-resistant microwaving with the lid on;Stain resistant material keeps plastic food container looking like-new and resist odors;Stacks perfectly to one another to save space and stay organized in the pantry or fridge;14-piece set includes (4)1.3 Cup, (2) 3.2 Cup and (1) 9.6 Cup with lids