Feature: Specification: Item Type: E‑Bike Controller Set Material: Rubber + Aluminum Alloy Color: As Picture Shown. Weight: Approx. 544.0g/19.2oz How to use: 1. A set of black wires corresponds to the negative ground wire of the handle, green corresponds to the signal output of the handle, and red corresponds to the 5v positive handle Package List: 1 Pair x Handlebar |