This appears to be a 12-piece glass storage container set featuring borosilicate glass bowls with airtight, locking lids.
Product Features
Material: Made from durable, high-borosilicate glass that is resistant to thermal shock.
Functionality: The containers are freezer, microwave, and dishwasher safe.
Lids: Features snap-locking hinges with silicone seals to create an airtight and watertight seal, preventing spills and keeping food fresh.