Cyclone Chain Gang Cleaning System by Park Tool

This Park Tool drivetrain cleaning kit consists of the following:
Cyclone chain cleaner
Citrus cleaning fluid (8oz bottle) - CB-24
Gear cleaning brush - GSC-1 

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.

To make it easy to control and use, there is even a handle.

Works with all multi-speed bikes and some single-speed models. Works on Bromptons as the chain tensioner gives enough slack to allow the chain to run through the cleaning device.

Weight: 322g (11.5oz) 

Park Tool Reference: CG-2.3