YL2508B Newspring Ind. plastic Black DELItainer containers are microwave, freezer, and refrigerator . They can withstand temperature up to 275° F. These containers are stackable and leak resistant. Model #: YL2508B Color: Black Material: Plastic Diameter: 4.55" Height: 1.8" Capacity: 8 oz. Clear lid Exceptional temperature endurance Can be stored in freezer or refrigerator or microwaved Withstand temperatures up to 250° F Stackable lids and bases Leak resistant deli seal Smooth wall design for label placement