A perfect boiled egg is all about timing. And now, with this nifty little gadget, you can get it just right every time, whether you like it soft, medium or hard. Simply place your egg in the pot of water alongside this nifty gadget and watch as the heat-sensitive material will changes colour as the egg cooks, so you'll know when it's done to your liking. This timer is a must-have for any egg lover. So get cracking and enjoy perfect boiled eggs every time!