Starbrite - Medium Premium Wash Brush With Bumper - Blue - 8" - 40162 Constructed of Medium Star Prene fibers that quickly break down heavy dirt and stains. 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. No job is too big or too small These premium brush heads are also available in Soft (Yellow) and Heavy Duty (White) for all your washing needs.