The 10" wash brush is perfect for washing windows, trucks, vans, cars, campers, RV's, SUV's or boats. It has super soft yellow flagged fibers for extra cleaning power, but it is very gentle on even the most delicate finishes. The 10" poly block will not warp or wear out. The standard poly block is guaranteed to stand up to chemicals and even acid, and it accommodates any handle. A 60" hardwood handle comes standard with every brush, or use the optional 60" steel flow through fountain handle to connect the brush to your garden hose. This will provide the extra lubrication you need for new finishes, or wet cleaning. To get the extra reach you need to clean trucks or high windows, choose the 10' telescoping metal handle. Guaranteed to stand up to chemicals and even acid. Standard poly block will accommodate the fountain handle.