Rubbermaid EasyFindLids SilverShield food storage containers feature 24/7 antimicrobial product protection. Silvershield antimicrobial technology uses small amounts of silver ions to help prevent the growth of odor-causing bacteria on the product surface. SilverShield technology lasts the lifetime of the product and is approved and safe for use on food contact surfaces. With the EasyFindLids System, lids and bases snap together for easy organization. Bases nest inside each other and one lid fits multiple bases. The containers have a space-saving, modular design for perfect stacking and organization. Containers are BPA free, Microwave Safe, Dishwasher Safe, and Freezer Safe. Item includes (5) 0.5C, (6) 1.25C, (6) 2.0C, (2) 3.0C, (1) 5.0C, and (1) 7.0C.