Feature:1. Applicable Models: Throttle grip kit is fit for Razor MX350 Electric Scooter, please confirm whether your model is applicable before buying.2. Clear Display: Designed with a power display, clearly showing the amount of power remaining, even at night can let you see at a glance, effectively improving driving safety.3. Circuit Protection: Controller housing is made of aluminum alloy with a groove design to protect the internal circuitry, facilitate heat dissipation and avoid thermal overload.4. High Stability: Excellent cables and reliable interfaces are durable and greatly guarantee a low failure rate for long time use.5. Ideal Replacement: Used for the replacement of the original controller and handlebar to improve the speed control, and is a practical accessory.Specification:Item Type: Motor Brushed Speed ControllerMaterial: Rubber, MetalAperture of Twist Grip: Approx: 22mm/0.86inRated Voltage: 24V DCCurrent Limit: 22ARated Power: 350wMating Motor: DC brush motorUndervoltage Protection: 31VThrottle Voltage: 1V to 4.2VApplicable Models: Fit for Razor MX350 Electric Scooter .Package List:2 x Throttle Handle 1 x Motor Controller 2 x Key Note:Professional installation is highly recommended, if you have questions you can always contact customer service and we will ask you the answer.