Using this stove control knob kit is easy. First, identify the old knobs on your stove that need replacement. Then, gently pull the old knobs off. From the kit, select the appropriate insert that matches the shaft size of your stove. Insert the chosen insert into the new white knob. Finally, place the knob with the insert onto the stove shaft. Remember, if you find the knob is a bit loose on a 6 - mm shaft, apply some silicone sealant to keep it in place. For maintenance, simply wipe the knobs with a damp cloth regularly to keep them clean. Avoid using abrasive cleaners as they might damage the knobs. Store any extra inserts in a dry place for future use.