Size: 5.5*3.2*4CM Material Safety: The sensitive egg timer is made of high quality eco-friendly resin material, you can safely use the egg with the pot. Heat-resistant, odorless, harmless and healthy. Heat Sensitivity Display: The egg cooking timer clearly displays heat sensitivity in three color changing modes. You can choose soft, medium, or hard-boiled eggs. Easy to use: All you have to do is watch the timer as the egg boils to change color from red to white. As the water heats up, the egg timer changes color from outside to inside. Once the color reaches the desired ratio indicated on the label and line, the egg can be removed. Reusable: Egg timer can be reused. After use, you just need to clean the hourglass by hand and put it in the kitchen drawer. Ideal gift: Egg Cooking Timer It is very suitable for chefs, mothers and parents. cooking enthusiasts. Quantity delivered: three pieces