Feature:1. Wide Applicability: This is a motor extension cable with male head 9 pin connector. Male head motor adapter is suitable for 250W 350W 500W motor.2. Conversion Cable: The cable is a conversion cable that can convert your motor (waterproof connector) to SM connector and extend its length.3. Male Head Waterproof Connectors: Male head waterproof connectors ensure maximum durability in all weather conditions, high performance wires and waterproof connectors ensure long term use and effectively reduce failure rates.4. Bicycle Lithium Battery Fittings: Bicycle lithium battery fittings for matching use, 160cm / 63.0in male head waterproof motor adapter.5. Easy to Use: Easy to use and fine workmanship. Without any difficult requirements even though you use it for the first time.Specification:Item Type: 9 Pin Conversion LineWeight: Approx.155g / 5.5ozMaterial: Copper + PlasticProduct Size: Line Length: Approx.160cm / 63.0inPlug: 9 PinConnector Type: Male Head WaterproofScope Of Application: Electric Bicycle MotorApplicability: Suitable For 250W 350W 500W Motor..Package List:1 x Motor Convert Extension Cable1 x Plastic Connector Note:1. Pay attention to distinguish between male and female terminals.2. Please allow 01 inch error due to manual measurement. Thanks for your understanding.