Feature 1Applicable Models: Throttle grip kit is fit for Razor MX350 Electric Scooter, please confirm whether your model is applicable before buying. 2Clear 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. 3Circuit Protection: Controller housing is made of aluminum alloy with a groove design to protect the internal circuitry, facilitate heat dissipation and avoid thermal overload. 4High Stability: Excellent cables and reliable interfaces are durable and greatly guarantee a low failure rate for long time use. 5Ideal Replacement: Used for the replacement of the original controller and handlebar to improve the speed control, and is a practical accessory.Item Type:MotorBrushedSpeedControllerMaterial: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 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List2 x Throttle Handle1 x Motor Controller2 x KeyNoteProfessional installation is highly recommended, if you have questions you can always contact customer service and we will ask you the answer.