Rubbermaid Lock-its Square Food-Storage Container, 3-cup, Red, Pack of 3 3-cup square food-storage container with clear polypropylene base Lid provides 4 locking tabs and molded gasket for spill-proof use Pieces snap together and nest with other Lock-its containers Safe for use in the microwave, freezer, refrigerator, and dishwasher Pack of 3 containers - Each container measures 7-1/5 by 7-1/5 by 2-1/2 inches