This Magic Built-In Gas Hob has a sleek and modern black glass surface, sure to make a statement in your home with black burners and black cast iron pan supports to keep your hob safe and look stylish. The GRA-4052B has 4 accessible dials that independently alter the temperature of your hob burners. This means that you can easily cook a variety of different dishes at the same time and change the temperature to best suit your dishes. The appliance has a flame failure device that cuts the gas flow if the flame is extinguished.