A professional wash quickly and easily. Over 70 sq.inches of cleaning surface. Holds plenty of soap and water. Dual-axis swivel head follows curves and contours for quick washing. Safe for all finishes including paint, fiberglass, windows and enclosures. Recommended by EZ2CY ans Strataglass. Not recommended for non-skid or rough surfaces - use a Swobbit System Brush for these surfaces. Replacement bonnets are available to keep your tool working like new.