The cra641dc is a built in ceramic hob that comes in a stylish contemporary black glass finish featuring 4 cooking zones and touch control knobs that will give you a precise temperature control the hob features a double ring zone that has been designed to increase cooking flexibility this will ensure the hob can be used for various hob sizes and power levels the hob heats up fast is energy efficient clean safe and controllable and as heat is formed rapidly it will save you time and mon