Egg shaped, heat sensitive egg timer that changes colour to display when an egg is soft, medium or hard boiled. Soft, medium or hard – how do you like yours? Egg-Perfect always lives up to its name. By sensing the amount of heat that each egg is taking up, you can have several eggs in the same pan together with the Egg-Perfect and cook them for different lengths of time... All you have to do is look out for the moment Egg-Perfect changes colour!