Sterilite 03211106 Ultra-Seal 5.8 Cup Food Storage Container, See-Through Lid & Base with Tangerine Accents, 6-Pack Food storage containers are safe for use in freezer microwave and dishwasher Features a steam release vent in the lid and color coded lid and base Four latches and a silicone gasket, 5.8 cup rectangle Ultra Seal containers are freezer, microwave and dishwasher safe BPA-free and phthalate-free