The Tablecraft HSMC3 Flexible Measuring Cups feature innovative 3-sided design, with lined measurements in cups, ounces and milliliters. The ergonomic design makes these cups easy to hold while pouring. The BPA-Free FDA Grade silicone is heat safe to 450°F and microwave safe for ultimate versatility. This dishwasher safe, stackable set includes: 1 cup, 2 cup and 4 cup.