●?? Size Compatible:108X thumb throttle compatible with most electric bike with φ22.5 mm handlebar,most bicycle electric for adults,electric mountain bike,folding bike and some electric scooter can be used. ●?? Voltage Compatible:Adapt to 36V,48V,52V,60V,72V electric bike or electric scooter controller ●?? Line length:The SM Plug(SM-3Y) cable length is 180 cm (70 inch) ●?? Signal Line Definition:The connector is 3pin Male,You need to pay attention to the definition of the three needles of the waterproof head. For a detailed introduction, please see the introduction in the main picture ●??Delivery & Service: We are committed to creating a good shopping experience. Your satisfaction is our ultimate goal. Your package will be dispatched through Amazons nearest warehouse.