• 20-piece set including 10 glass containers with their respective plastic lids. • Non-porous borosilicate glass base that does not absorb stains or odors and resists corrosion. • BPA-free plastic lids with safety lock and silicone ring for an airtight seal. • Includes rectangular containers (379 ml, 852 ml, 1845 ml), round (710 ml, 308 ml), and square (420 ml, 946 ml). • Material suitable for oven, microwave, freezer, and dishwasher.