Compatibility and Installation: Designed specifically for the 1/12 H12Y and H12Y+ remote control cars, this upgraded metal luggage rack can be installed without punching, ensuring a damage-free setup. Please note that an internal hex screwdriver is required for installation Enhanced Protection: The luggage rack offers great protection for the car's roof and windshield frame, making it a practical addition to your RC vehicle. Its simple installation process allows you to easily enhance your car's durability Lighting Integration: The rack features pre-drilled 5mm holes for adding light kits, allowing you to customize your vehicle with additional lighting. When installing lights, ensure that spotlights are first placed into the lamp holders before attaching them to the roof Easy Light Connection: The light kit connects directly to an unused channel on the receiver and illuminates automatically upon powering up, eliminating the need for manual control. Be mindful of polarity; black wires are negative and red wires are positive as indicated on the receiver label Sturdy Construction: Made from quality aluminum alloy, this luggage rack measures 129mm x 88mm x 14mm, providing solid support while maintaining a lightweight profile suitable for RC vehicles Specification: Material: Aluminum Alloy Size Chart: LxWxH: 12.9cmx8.8cmx1.4cm/5.08inchx3.46inchx0.55inch Package Includes: 1RC Car Roof Rack Set Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.