[Harley Motorcycle Brake Lights]:Material: High Quality Aluminum Housing and Iron Bracket, Seven Fins Design of Tail Light with 4" Diameter, Voltage: 12V, External Surface Dimensions: 7.1"(18cm) x 3.9"(10cm) Anodized black aluminum billet accepts most 7.1" x 3.9" boards and has hidden wires (3 wires: ground, tail light and brake light.) [Accessories]: Universal design, suitable for most motorcycles, suitable for most motorcycles, such as Harley Davidson/Choppers/Yamaha/Honda, etc. (Please check the size before buying). [Recommended Reasons:]: Customized design with protective aluminum grille cover. Ultra-bright high-power bulbs provide maximum visibility and safety. Integrated lights for running lights, brake lights, rear tail lights, license plate lights. [Easy to Install]: Easy to install, with bracket, with mounting accessories, 3 wires: ground wire, tail light and brake light. High vibration resistance and waterproof. Colour: Black Packing list: 1pcs