Par Aide Deluxe Ball Washer Ensemble with Trash Mate Double Unit, Spike Brush and Club Washer Hand assembled from the highest-quality materials Powder-coated cast aluminum body and cover, stainless steel hardware, nylon bristles set in rubber for durability Patented helical agitator assures thorough cleaning and dependability Improved integrity of powder coating because of a pre-treatment process and the use of foam rubber gaskets between the cover and body.