Universal Handle Connection - Compatible with standard 3/4-inch caps, this car wash cleaning brush can be used with circulation systems, filler brushes, and handle brushes. Deep Cleaning Car Cleaning Brush - With a cleaning brush with a gravitational four sides, the car brush can help you in small spaces, wheel wells, and small areas. Safety Bristles Ultra-Soft Exterior Heads - Soft on paint, chrome, metal, and other exterior surfaces, our ultra-soft heads won't damage or scratch your vehicle or outdoor items. Versatile Cleaning Tool - This car wash head is versatile. So you can use it to clean cars, trucks, SUVs, ATVs, boats, or kayaks.