The Star brite(R) Medium Premium Wash Brush with Bumper is constructed of medium star prene fibers that break down heavy dirt and stains with little hassle. FEATURES: This is a Medium Fiber head that will outlast all other brush heads There is no finer brush on the market This is the perfect all-around brush head These premium brush heads are also available in Soft (Yellow) and Heavy Duty (White) for all your washing needs Model: 040162