Features1Manufactured from aluminium materials for a long service life and corrosion resistance. 2Compact design, easy installation, sturdy and durable, convenient to use. 3Ideal replacement of your old controller, the fixed speed knob switch is used to set the speed. 4Suitable for electric scooters, electric bicycles, and tricycles, good compatibility. 5Adopt high specification craft, fitment with your equipment model.SpecificationConditon: Item Type: Brush Controller+Fixed Speed Knob SwitchMaterial: AluminiumColor: As Pictures ShownRated Power: 500WApplication: Suitable for genera electric bike, the fixed speed knob switch is used to set the speedPackage List1 x Brush Controller1 xPositioning Switch