Features1Main Functions: The extension cable is used to connect the controller with four wires or five wires. It is suitable for most electric bicycles, electric motorcycles and electric scooters. 29 Pin and 25cm: The total length of 9 pin waterproof cable is 25cm. The cable is light and practical, easy to carry, and will not increase the extra burden of the bicycle. 3Copper and PVC: The electric bike extension cable is made of copper and PVC, with a mixed structure, which is not easy to break, wear proof, durable and has a long service life. 4Easy to Install and Use: The female connector is connected with four wires or five wires, and the male head is connected with the controller. Easy to install and remove. 5IP65 Waterproof: The waterproof grade of the electric bike extension cable is IP65, and the working temperature is between 40 and +85 . It is resistant to high temperature and low temperature.SpecificationItem Type: Electric Bike Extension CableMaterial: Copper and PVCWeight: Approx. 39g/1.38oz Cable Length: 25cm/9.8inOperating Temperature: -40- +85Connector: Waterproof connectorPackage List1 x Electric Bike Extension Cable