Extend Your Power: Each Extension cables comes 11.8 inch/ 30cm in length with black connectors on both ends Triple-Layered Protection: Insulating and certified cable wire, protect your power delivery with properly insulated cable sleeving Stiff and Rigid Cable Wires: Premium nylon sleeve material made these cable wires stiff, rigid, and flexible Heat-Shrink-Less Design: The new individually sleeved cables are heat-shrink-free to ensure high-quality cable assembly and support for high currents in order to achieve superior performance and stability Clean Cable Management: Offer users more flexibility for easy installation as well as a clean and professional look