Starbrite - Premium Wash Brush - Synthetic Wood Block w/Bumper - White - Hard - 8" - 40172 Performance, technology and durability. Just a few of the many reasons our premium brush head is the best money can buy. Features: Lightweight synthetic block combines the beauty of wood with extreme durability Impervious to exposure to UV rays, cleaning agents and weather Bumper edges help prevent scuff marks Fits all Extend-A-Brush handles Stiff fibers with flagged ends are ideal for tough cleaning tasks