Made from high-quality borosilicate glass, these versatile containers endure extreme temperatures ranging from -68°F to 950°F, making them suitable for baking, microwaving, freezing, and meal prepping without cracking or absorbing odors. The set includes a variety of rectangle, square, and round shapes with a total of 10 pieces in sizes from 1.6 to 6.4 cups, designed to nest together for compact storage in the pantry or refrigerator. Each container features a snap-lock airtight lid with a built-in steam vent that allows safe microwave use by simply opening the vent during heating. The durable glass bases are dishwasher-safe, while the BPA-free plastic lids resist warping and maintain a secure seal. Though the lids are top-rack dishwasher-safe, handwashing is recommended to extend their lifespan. Ideal for everyday kitchen organization, this collection supports seamless transitions from oven to fridge and offers reliable performance for long-term food storage. Color: Blue.