Unused ELMER Storage Containers - Set of 3 Microwave and Freezer Safe Features cute elephant and bear motifs. The square containers have a date dial and steam vent. The lids don't snap shut, so they're more convenient for storing in the refrigerator at home rather than for carrying around. *Quality Information* Material: Polypropylene (body, lid) Heat Resistance: 140°C Cold Resistance: -20°C Capacity: Square 330 ml, Round 270 ml Made in Japan Thank you for looking (*^*)