[Precise Size]If you are not sure whether the knob fits, you can refer to the size in the picture and the direction of the D-shaped hole. If it is the same, welcome to buy and try. [Material Upgrade]Made of highly materials, rigorously tested to meet the standard. Compact and sturdy, heat and wear . [Worth buying]When your heater knob is broken, you can buy accessories to replace it yourself, saving your money. [Easy to install]Simple and convenient installation, saving your time and money. No tools are required to replace it. Wear work gloves to protect your hands during the replacement., Manufacturer: Akfldms