Upgrade your kitchen storage with this 21 sets food storage container (21 containers and 21 lids). It includes a variety of sizes, such as 7 rectangle containers (ranging from 4 oz. to 51 oz.), 4 round containers (from 6.1 oz. to 40 oz.), 4 square containers (from 6 oz. to 40 oz.), and 6 round sauce cups (1 oz. and 2 oz.). Made of upgraded food-grade, BPA-free plastic, these containers are safe for your family. They are microwave-safe (without lids), dishwasher-safe, and freezer-friendly. Each container has a premium silicone ring and 4 reinforced locking clips for a leak-proof, airtight seal. The stackable design with non-slip bottoms helps save space in your fridge and pantry. Ideal for meal prep, picnics, BBQs, camping, or travel, these containers are a must-have for any kitchen. The clear design lets you easily identify the contents, and the set comes with labels and a pen for added convenience.