The new CM-5 chain cleaner uses an extra large solvent reservoir and a series of rotating brushes to scrub the chain's side plates and clean inside the chain's rollers. Uses a special two-step cleaning process that makes a difference you can see. Step one 'scrubs' the chain with solvent, while step two uses a larger volume of water and solvent (or detergent) to 'flush' grit away. A strong (grade 5) magnet draws particles from the chain to the bottom of the CM-5's fluid reservoir, effectively keeping the particles from being redistributed on the chain. A durable, open-cell sponge material draws fluid from the chain as it exits the CM-5, reducing the drips and mess so common with chain cleaners. To make the CM-5 Chain Cleaner easy to control and use, we've added a sturdy handle. The body of the CM-5 is made from durable nylon and the brushes and sponge material are replaceable. Works with all multi-speed bikes and some single-speed models. With these innovative features, the all new CM-5 delivers a new level of performance for on-the-bike chain cleaners.