The Swix Roto Double Brush will help speed up the waxing process and get you out on the hill quicker. At 140 mm wide this brush requires the 140mm hexagonal drive shaft. Split evenly this brush gives you a Horsehair Brush and a Fine Nylon Brush all in one. Use the Horsehair side for the initial brushing process and the fine nylon for polishing. Can be used with all Types of Wax and Cera F, Shape: Roto, Bristle Type: Nylon & Natural Fibers, Model Year: 2021, Product ID: 90198, Model Number: T0015DB, GTIN: 7045950680134