Take your favorite foods to-go with the Sterilite Ultra•Seal™ 3.1 Cup Rectangle food storage container. This container features a color-coded matching system to help find the correct lid and base combination without rummaging through the cupboards in your home. The gasket and four latches in the lid create an airtight and watertight seal that keeps food fresh and prevents liquids from leaking. Ultra•Seal™ containers also stack securely when in use and nest together to store efficiently when not in use. A vent in the lid releases steam when the container is placed in the microwave. Ultra•Seal™ containers are freezer, microwave and dishwasher safe, as well as BPA-free and phthalate-free. The overall assembled dimensions of this item are 7 1/8″ L x 5 1/8″ W x 2 1/2″ H.