Trudeau's Set of 4 Measuring Cups are made of 50% Bamboo and 50% Melamine materials. Orange = 1/4 cup, Yellow = 1/2 cup, Green = 3/4 cup, Red = 1 cup capacity. Measuring Cups nest with our Bamboo / Melamine Mixing Bowls and Colander sets for convenient storage. Dishwasher safe. 5 year warranty.