1. BOROSILICATE GLASS:Our glass storage containers are made from borosilicate glass, which is stronger than cheaper glass food storage containers, ly go straight from the refrigerator to the microwave or oven to the table. 2. [3 PACK Glass Measuring Cups + 5 Measuring Spoons] Measure ingredients with precision and ease with the Glass Measuring Cup Set. This 3 pack includes 34 oz (1000 ml), 17 oz (500 ml) and 9 oz (250 ml) measuring cups, perfect for all your cooking and baking needs. Made from borosilicate glass, these cups are stronger than traditional glass, and are for use in the microwave, zer, and oven. + Bonus 5 Measuring Spoons. 3. CONVENIENT : The clear, easy-to-read markings on the side of each cup allow for accurate measuring in ounces, and milliliters. The cups also feature a curved spout for precise pouring and easy-grip handles for added comfort. 4. & BPA FREE: Easy to use and easy to take care of, as it's in the microwave, zer, dishwasher, and oven.