iSi Set of 3 Flexible Measuring Cups - 1, 2 and 4C. Capacity.  Highly Ranked and Recommended Set includes 1, 2 and 4C. Measuring cups with easy to read increments of Cups, Ounces and Millileters on each cup Flexible construction allows you to pour liquid precisely with no spills. Great for batters and adding ingredients to your mixer or food processor. Smooth inside, textured outside allows for easy release of ingredients, but a non-slip surface for holding the measuring cup Heat resistant up to 500 degrees Silicone is dishwasher and microwave safe and will not absorb odors or colors