1. Stainless SteelHeavy duty stainless steel body and durable composite components ensure longlasting performance. The flexible bristles protect surfaces from damage while the glide wheels make it easy to maneuver around job site. 2. 16.5'' Pressure Washer AccessorySurface cleaner for pressure washer gives a commercial grade cleaning area of 16.5'' wide, compatible with pressure washers up to 2000 4000 PSI. Ideal for cleaning stubborn stains on large flat surfaces such as patios, driveways, decks, sidewalks. Flow rate 1.8 3.7 GPM. 3. 2 Extension Wand and 2 Replacement NozzlesThe extra extensions are a nice addition to find the right ergonomic position, so you don't have to hunch over. 2 additional nozzles are attached for replacing the original nozzles when seriously blocked. And when the nozzles are blocked, you can use needles to remove sand or other debris in nozzles and rinse with fresh water. 4. Versatility and Great CompatibilitySpecifically designed to clean driveways, patios, concrete, decks, and sidewalks. Integrated rotary rod with dual highpressure rotating jets clean up to 6X faster, that breaking up dirt and grime fastly without leaving marks on the surface. Compatible with 1/4 inch quickconnect capable wand, the Surface Cleaner can be used with most gasoline pressure washers.