Specifications: Inside Diameter: about 2.2cm Wire length: approx. 143cm/ 56.2" Colour: black grips with silver ends Includes: 1 throttle grip， 1 normal grip (matching pair) Throttle Control Set Three Pin Blue: signal wire Black: negative pole Red: positive pole Electric Throttle，Motorcycle，Scooter Suitable for most 12v，24v，36v，48V bike，scooter with hall controllerPackage Included: 1x Throttle grip 1x Normal grip