KitchenCraft Colour Changing Egg Timer

Amazon

CRACK THE SECRET TO GREAT BOILED EGGS: this gadget changes colour when your eggs are done just the way you like them REACTS WITH HEAT: pop this egg timer in your pan with your eggs. It changes colour to show how well done they are CLEARLY MARKED: it's easy to see when your eggs are soft, medium or hard boiled ADJUSTS TO ANY SITUATION: you'll know when they're ready, no matter the temperature or number of eggs A SAFE CHOICE FOR YOU AND YOUR FAMILY: the boiled egg timer is made of food safe polyresin; 12 months guarantee

Harts of Stur

A simple and easy to use egg timer for cooking perfectly soft, medium and hard boiled eggs. Heat sensitive colour changing indicator signals when cooked to the required taste. Also cooks mulitple eggs to different tastes.