Thanks to its airtight seals and secure latches, this Rubbermaid Brilliance Sandwich/Snack Lunch Storage Container Kit is guaranteed not to leak, allowing mess free transport of your favorite lunch itemseven soups, stews, and sauces. It also sports a modular design that allows convenient stacking in your fridge or lunch bag, saving you some much needed space. No need to unstack and unseal multiple containers to find a specific dish; their crystal clear Tritan construction lets you see what you've stored at a glance. This material also provides stain and odor resistance to keep the container spotless and fresh after every use. Want an easier way to re heat leftovers? Built in vents allow steam to escape so you can microwave food without removing the lid. In addition to being microwave safe, these Brilliance containers can also be placed in the freezer and the dishwasher without warping or discolorationbut should anything ever go wrong, Rubbermaid Brilliance products are backed by a full lifetime warranty.