These 18 oz round glass soup containers are crafted from premium food-grade borosilicate glass, known for its superior durability and resistance to thermal shock, making them ideal for everyday use. Unlike ordinary glass, this high-quality borosilicate material ensures long-lasting performance, while the BPA-free lids feature a leak-proof silicone ring and four locking buckles to prevent spills and maintain freshness. Measuring 3.8 x 5.5 x 3.1 inches with a 2-cup (18 oz) capacity, these containers are perfect for meal prepping, storing soups, fruits, or salads. They are microwave-, dishwasher-, and refrigerator-safe—just be sure to open the vent on the lid when microwaving to release steam. Designed for convenience, these containers make healthy meal prep easy and efficient.