The Sassy Color Change Fork and Spoon are made of non-toxic plastic. Sometimes microwave ovens and hot water can quickly overheat your child's food. This Color Change Fork & Spoon lets parents and caregivers know when food is too hot. When the temperature of your child's food is too hot (approximately 105 degrees F or above), spoon and fork change color. Curved handle is easy for your toddler to grasp in either hand. Recommended for ages 9+ Months. Top rack Dishwasher safe. Colors vary.