Cooking & BakingPBD7231SGSerie | 2 PBD7231SG78.5 cm Black Tempered Glass Gas Hob The tempered-glass gas hob: offers you a sophisticated design that is easy to clean. Flame wheel wok burner and 4.5 kW: for excellent cooking, especially for Asian style food. The large 230° knob rotate angle: enhanced flame control. The practical high-end pan support system provides the optimal support for various pans/woks. Enhanced safety gas valve: safety valve system will cut off the gas automatically when the flame unexpected goes out.