Features:Kitchen Supplies Egg Perfect Color Changing Perfect Boiled Eggs Cooking HelperHeat sensitive, perfectly cooked every time, no more guess work.Graduated scales show when eggs are soft, medium or hard by sensing heat instead of time.Soft boiled eggs are exactly as you like them.Hard boiled eggs are no longer over cooked, so they have the perfectly colored yolks and a smooth texture.The egg device can be cooled on the counter.Do not immerse it in cold water.Specification:Type:TimersFeature:Eco-FriendlyMaterial: resinDiameter:56mm*40mmColor: as shownNote:Please allow slight 1-3cm difference due to manual measurement and a little color variation for different display settingPackage Including:1x Timer