Three-Sided Brush Design: The brush surrounds the chain from three sides for easy, quick cleaning. Perfect for cleaning bicycle and motorcycle chains. Gap width: Approximately 16mm. Set Contents: A set of 4 bike chain brushes, with brushes that thoroughly remove stubborn dirt! It reliably scrapes out mud deeply lodged between gears, making it easy to clean bicycle chains. Areas of Use: Ideal for cleaning various parts such as bicycle and motorcycle chains, brake parts, and gears. Applications: Suitable not only for motorcycles but also for other vehicles such as bicycles and road bikes, and regular maintenance helps improve performance by keeping the chain in good condition. Durability: Made of high-quality materials and designed with a durable structure that can withstand long-term use.