Take the mystery out of boiling eggs. Whether  you like your eggs soft boiled, hard boiled, or in-between, the foolproof Magic Egg Timer will get it right, every time. To start simply place the Magic Egg Timer in cold water with your eggs. As the water temperature increases, the egg timer absorbs heat and changes colour, with the red inner disc becoming smaller the longer the water boils. The size of the inner disc determines the softness of the yolk insides your eggs from heat. The Magic Egg Timer can be used again and again.