Remove the grit and grime with Park Tools Cyclone Chain Cleaner and keep your chain, in tip top condition. Using a series of rotating brushes, to get chains really clean and any grime or dirt that comes off your chain, is deposited inside the solvent reservoir, for easy cleaning. No need to remove the chain either, you lock the Cyclone Chain Cleaner to the chain and spin your pedals in a reverse motion and watch your chain come back to life. Any particles scrubbed from chain are kept in the reservoir, thanks to the magnet found at the bottom. Remember to lube your chain, after cleaning the chain.