2-in-1 undercarriage cleaner 16 Inch water broom for pressure washer with 4 nozzles and 2 upgraded flexible rubber wheels (360 degrees rotatable). Come with 2-pieces 16 Inch straight extension wand, 1-piece 15 Inch 90 degree curved wand, so that you can deeper cleaning. Pressure washer surface cleaner attachment use to clean surfaces quickly, easily and evenly. Ideal for sweeping loose debris (sand, leaves, light mud), such as clean sweeping patio, driveway, poolside, sidewalk, driveway, deck, etc. How to Switch Mode: Pull out the nut of the pivoting coupler at the end of cleaner. Then rotate the pivoting coupler to the end. Finally the nut will lock automatically. Undercarriage Cleaner Mode: Easy to clean and avoid crawling under the vehicle. Undercarriage washer is to clean road dirt, oil and fuel contamination under trucks, SUVs, cars, commercial vehicles and trailers. It works as under carriage power washer. Water Broom Mode: Pressure washer surface cleaner attachment is used for quick, easy and even cleaning of surfaces. Power washer surface cleaner is ideal for removing loose debris (sand, leaves, light soil) from sidewalks, driveways, decks, etc.