The product has versatile shapes and capacities for food storage that includes rectangle that 35.1 oz., 21.6 oz., 12.5 oz. and 5 oz., square that 27.1 oz., 17.6 oz., 10.8 oz. and 6.8 oz., including large and small containers are versatile for different use like meal prep food, leftover, sauce, lunch to go, RV, picnic, camping. The meal prep container is able to withstand -4℉ to 752℉ (-20℃ – 400℃), the glass containers is made of high-quality borosilicate glass to hold up very well from refrigerator direct to microwave. The Glass food containers is designed with removable silicone seals and 4-hinge snap locks to ensure zero leaking or spilling, which also prevent smell go out and keep food fresh. And the glass food containers is 100% BPA Free, crystal-clear glass making it easy to see what's inside. Stains-resistant material for easy cleaning and keep glass containers looks like new. The durable food storage containers stack into each other for easier storing when you don’t use them, which fit neatly in kitchen cabinets.