FEATURES This egg timer takes the guesswork out of cooking eggs! As the timer heats up, the red surface changes color to show soft, medium, hard, and every stage in between, absorbing heat in exactly the same way as an egg. The result is the perfect hard-boiled egg! Simply place the timer with the eggs on the bottom of the pan. Cover with at least an inch or two of room temperature water. The egg timer will darken as the egg cooks. Calculate cooking stages accurately based on temperature, not roughly by time. Adjustable for number of eggs and water level in pan. Product Name: Boiled Egg Timer Product material: resin Product size: 5.5*3.9*3.2cm Product color: red Packing list: egg timer*1 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.