Reusable Design: This hard-boiled egg timer is a reusable gadget that indicates how long the egg is heated. It changes color as the egg cooks, showing you the perfect doneness every time. Exquisite Workmanship: This hard-boiled egg timer is made with food-grade plastic, a safe material that is safe to use in cooking. You can use it to monitor the doneness of your eggs without worrying about harmful chemicals or toxins. Easy to Use: This hard-boiled egg timer is easy to use and shows you the exact hardness of your eggs. It changes color as the eggs cook, from red to green, indicating soft, medium, or hard-boiled. Easy to Clean: This hard-boiled egg timer is made of durable material that won't break and can be hand washed easily. You can use it anytime to make perfectly cooked eggs. Novel and Interesting: This hard-boiled egg timer is a great gift for anyone who loves kitchen gadgets. It changes color as the eggs cook, showing the doneness level from soft to hard. Style: A Color: As Shown Material: Plastic Size: 5.5 x 4 x 3.2 cm Package Contents: 1 x Egg Boiling Timer (No need to charge or use batteries) Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.