Features1Automatic Identification Function: Lithium battery, water battery and dry battery are not distinguished, which can automatically identify, and the diameter of handlebar is 2.3cm / 0.9in. 2Wide Compatibility: Does not distinguish all types of electric vehicles, general 12V99V electric vehicles. 3Commonly Used Wiring Method: The red line is shifter positive 5V, the black line is the negative pole, please be sure to compare the function wiring of the controller, not simply connect the controller wiring according to color, once the wrong connection will cause damage to the controller or handle. 4Manufacturing Material: Made of high quality plastic material, it is strong and durable, which undoubtedly extends its service life. 5Ergonomic Design: The handlebar is ergonomically designed for slip resistance and comfortable grip, and the speed can be easily adjusted during use.SpecificationItem Type:Electric Bicycle Throttle Grip KitWeight: Approx.113g / 4.0ozProduct Material: PlasticModel: S Series (5V-99V Automatic Identification Of Electric Vehicle Voltage)Efficiency: 98%Hall Grade: Linear HallWorking Voltage: Shifter DC0.8V-4.2VElectric Quantity Display: Lithium Battery And Voltage Are Not Distinguished, And Can Automatically Identify (12V, 24V,36V,48V,60V,72V Electric Vehicles Can Be Directly Used, Part Of 84V Electric Vehicles Can Also Be Used)Handlebar Diameter:Approx.2.3cm/0.9inPackage List1 x Thumb Locks2 x Key