This Portable Bicycle Chain Cleaner consists of 3 pieces: - Bicycle chain cleaner, bike brush, crescent sprocket scraper. The portable chain cleaner allows you to quickly and easily clean and lubricates your bike chain without removing it from the bike. And bike brushes with a thick and long pile allow you to get into hard-to-reach places, thoroughly cleaning the sprockets and chain. Cleaning the chain takes place in just a few stages: the chain is placed inside the chain wire and filled with flushing liquid. As you crank the bicycle, the links pass through a gear system with bristles and sponges. After a complete cleaning, you can pour lubricant into the chain washer and repeat the procedure. The Bicycle Chain Cleaner and Bicycle Chain Cleaner will effectively remove dirt and old grease, keeping your hands clean and cleaner.