Universal 12v 24v 36v 48v Black Electric Scooter Bike Throttle Grip Beautiful outlook and modern design. Fit most 12v,24v,36v,48V,60V bike,scooter with hall controller ELECTRIC THROTTLE,MOTORCYCLE,SCOOTER Throttle Control Set Three Pin Wire length:28cm Inside Diameter:2.2cm Size:13 x 3.2cm REDpositive pole Blacknegative pole BLuesignal wire