TrueSeal Round Glass Food 1 Cup 236 mL

"TrueSeral Food Storage feature airtight lids for freshness and leak proof storage. To use, press the clear centre of the lid, and you'll hear the air release - airtight & leak proof! Base is Microwave, oven, freezer and dishwasher safe. Lid cannot be used in the oven or microwave.Tempered glass base Glass made in USA"