The Whirlpool W10826855 Control Knob provides precise adjustment of compatible cooktop heat settings. This replacement knob fits onto the cooktop control shaft and turns to select and adjust the desired burner setting. Its clear markings allow users to identify heat levels and make convenient adjustments during cooking. A cracked, loose, worn, or missing knob can make burner control difficult and affect the appearance of the cooktop. Replacing the knob can restore proper control and provide easier access to cooking settings without replacing the complete control assembly.