The Rubbermaid Leak-Proof Food Storage 12-Piece containers are crafted to be airtight. The Brilliance Sandwich and Salad Kit is a customizable, bento box style solution. It is complete with multiple tray inserts and a dressing cup to make meals customizable. The salad tray insert includes 4 divided compartments to keep toppings separate from greens until ready to eat. The removable snack tray allows for combo like nuts and cheese, veggies and hummus to be stored. Lids come with secure latches to lock in freshness and prevent leaks and spills in transport. These lightweight containers are stain and odor-resistant and offer a crystal clear view of what’s inside. Built-in steam vents allow for splatter resistant microwaving with the lid on and latches open. The modular design allows containers to stack neatly in the refrigerator or lunch bag. All containers are dishwasher, microwave, and freezer safe.