Yosoo Motorcycle Bike Chain Maintenance Cleaning Brush Bike Chain Repair Tool Kit Chain Cycle Brake Dirt Remover Tool Excellent Design --- 2 in1 chain & crankset clean brush. U-shaped head, 3-sided bristles, the back end with 0.4 inch stiffer bristle. Multi Purpose --- The 3-sided bristles allowing you to clean each side of your chain and the long bristle side lets you clean other parts of your bike like sprockets and wheels. Protection Provide --- Help to prevent premature wear of your drivetrain and maintain smooth operation. Wide Application --- Enable to clean the chain of bicycle, motorcycle, etc. Extremely Durable --- The stiff bristles can break up grunge and grime easily.