5-PIECE SET: The glass food containers set comes with five (5) containers of 30 oz each with lids for meal prep, food storage, leftovers. The containers are oven, microwave & freezer-safe PREMIUM 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 & wont absorb stains or smell SAFE & 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 plastic