This innovative, space-saving design neatly combines the containers and lids for different-sized storage containers in the same space as one. The problem with most sets of storage containers is that they take up precious cabinet space when not in use and usually require lids and bases to be stored separately. This can make pairing the corresponding elements a real hassle. With the Nest Storage Food Storage Container Sets, containers nest neatly inside each other and lids snap conveniently together making them very easy to find. All elements are clearly color-coded for easy pairing. Lids and containers are freezer and microwave safe, and top rack dishwasher safe. BPA free and food safe. Keep containers upright. Avoid overfilling to lid level. Not suitable for use in ovens and grills.