ATTENTION: MAKE SURE YOUR WORKING PRESSURE WASHER IS HIGHER THAN 1500 PSI. Pressure range: 1500 PSI to 4000 PSI. 2500 PSI or higher will have best result. ★Two lengths are available 50CM (5 nozzle)undercar cleaner for hot and cold water power washer with &32CM(4 nozzle) cleaning car chassis,urban roads, Durable sturdy aluminum structure, 2 upgraded flexible rubber wheels,make it easy to handle,move and clean. Using the new design. Smaller start-up pressure, faster cleaning speed. Better cleaning effect. Color: silver Material: aluminum alloy