Features1The controller shell is made of aluminum alloy, which can protect the internal circuit, and has good heat dissipation to avoid thermal overload. 2The throttle grip provides you with better and comfortable handling, nonslip, reliable use. 3The wires and interfaces of the controller are sturdy and reliable, ensuring a low failure rate during longterm use. 4Electric bike conversion accessories, included brushed controller, throttle grip. 5Professional manufacturing, stable performance and high reliability.SpecificationItem type: Controller Throttle Grip SetMaterial: Aluminum alloy + plasticColor: As picture shownController Size: Approx. 8.3x6.6x3.4cm/3.3x2.6x1.3inWeight: Approx. 275g Amount voltage: DC24VAmount power: 500WUndervoltage: 200.5VThrottle Grip: 1-4VPackage List1 x Controller1 x ThrottleGrip