Specially designed brushes for cleaning hard to reach areas on most bicycles. BCB-4.2 is four-piece brush set designed specifically to clean bicycles. Ergonomically designed and featuring dual density. sure grip handles. Includes: 1 GSC-1 Gear Clean Brush. 1 Tapered Detail Brush. 1 Frame Cleaning Sponge/Bristle Brush. 1 Soft Bristle Soaping Brush.