Keeping your chain clean is an essential part of good bike maintenance. The CM-5.2 Cyclone Chain Scrubber uses an extra large solvent reservoir and a series of rotating brushes to get chains really clean.Quickly and easily cleans chains, freewheel cogs, and chain-rings.Incorporates an extra large reservoir and two step cleaning process along with a high grade magnet to draw metal particles away from chain.Effectively keeping them from being redistributed on the chain during cleaning.