Package Includes: The package contains scrapers and brushes to help you easily clean your bicycle chain, gears and other locations, including those critical and hard-to-reach areas. About Size: The total length of the scraper is 22.2cm, the tooth length is 7.3cm; the total length of the brush head is 22.5cm, and the brush head is 6.3cm/. bicycle cleaning brush is made of plastic material, which is tough and durable. Not easy to break and wear, reusable and . How to use: The bike cleaning brush is used to clean sprockets, derailers, cranks and pedals. The scraper removes dirt, mud, etc., helping you remove dust from tight gaps. Regular cleaning of your bike chain can help keep your bike in good function and give you a smooth, safe and enjoyable ride.