The double loop bristles provide a round shape that makes cleaning between wheel spokes and all hard to reach places quick, efficient, and easy. The round design will squeeze between your wheel spokes and gently loosen road grime, brake dust, and grit. The bristles are soft enough to prevent scratching yet firm enough to clean tough brake dust and road grime safely. This Spoke Wheel Brush is durable and will last through countless cleanings. The soft grip handle is ergonomically designed making it comfortable to use plus has a convenient hole to hang the brush when not in use. Safe to use on all wheel types.