10-PIECE SET: The glass food containers set comes w/ (5) 30oz containers with clear locking lid & red air hole for meal prep, food storage, and leftovers. Stain and odor resistant and safe for oven, microwave, and freezer usePREMIUM GLASS: This glass meal prep container is crafted of high borosilicate transparent glass & can tolerate rapid temperature changes w/out warping or cracking. Safe to transfer from freezer to oven in an instant & won’t absorb stains or smellSAFE & RELIABLE: Unlike plastic, this food storage glass meal prep bundle is free of chemicals & environment friendly. Hot foods can be placed directly to the containers as no chemicals will leech into the food & lids are crafted of BPA-free plasticAIRTIGHT SEAL: The glass containers for food storage BPA free features 4 snap leak-proof lid that creates an airtight seal for food freshness. Newly innovated hinged-lids technology makes the lid easy to flip open & shut. Great for gym, pool, or workEASY TO CLEAN AND STORE: Features rectangle container style. The food prep container glass is dishwasher safe, making cleaning a breeze. Containers & lids are stackable and nest inside each other so it doesn't take up much space