Park CM-5 Cyclone Chain Cleaner. The patented ChainMate Chain Scrubber is made with a tough plastic base material, uses an extra large solvent reservoir, and a series of rotating brushes to get chains really clean. A magnet at the bottom of the Cyclone’s solvent reservoir draws particles scrubbed from the chain, effectively keeping them from being redistributed on the chain during cleaning. Durable sponge material draws solvent from the chain as it exits the Cyclone, reducing drips and mess.