Material: stainless steel. Type: chassis cleaning (nozzle up), road cleaning (nozzle down). Type A: 1 1/4 inch connecting rod Type B: Car chassis cleaning nozzle Type C: Road cleaning nozzle Specification: Clean quickly and easily under vehicles, boats, RVs. This multifunctional high-pressure cleaning nozzle helps remove road dirt, fuel and engine oil contaminants. Scientific design: 13-inch chassis cleaner, equipped with hot and cold water powered washing machine with 4 nozzles and 2 casters. It is easy to clean and helps avoid crawling under the vehicle. Remove road dirt, oil and fuel contaminants from cars, trucks, SUVs, commercial vehicles and trailers. Quick connection: Easy to connect and release using 1/4 inch male plug. Connect the car washing machine and the pressure washer rod. 100% Satisfaction: Any further question about it, please feel free to contact us. Note: Due to the different display and lighting effects, the actual color may be slightly different from the image, and there is a slight color difference. The actual product shall prevail. Due to manual measurement, please allow a deviation of 0.5-2 cm. Package List: Choice1: 1 x 1/4 inch connecting rod Choice2: 1 x Car chassis cleaning nozzle Choice3: 1 x Road cleaning nozzle