FEATURES BPA free, made of durable food-safe non-toxic polystyrene, completely safe for both children and adults, the perfect gift for anyone who eats eggs (almost everyone). This egg timer takes the guesswork out of cooking eggs! As the timer heats up, the surface changes color to show soft, medium, hard, and every stage in between, absorbing exactly the same amount of heat as the egg. The result is a perfectly cooked egg! This hard boiled egg timer is so easy to clean, we recommend that you hand wash it at all times for a quicker and easier cleanup without breaking or damaging it. Product Name: Boiled Egg Timer Product material: resin Product size: 5.5*4*3.2cm Product color: yellow Packing listBoiled egg timer*2 Please note: 1. Due to the long shipping time, the item may be damaged during transportation, if the item is damaged, please leave us a message through the official website immediately before posting a comment, I will solve the problem for you. 2. Due to manual measurement, the size may have 1-3cm error. 3. The color displayed by different monitors may vary.