VeloChampion Bike Chain Cleaner - for All Types of Bicycle Chains No need to remove the chain from the bike! works with the chain in place. Simply open the casing, place over the chain, close the casing, pour your preferred cleaning fluid (not supplied) into the refill hole, hold the chain cleaner handle and turn your pedals to start cleaning. Roller brush system, simple hand held operation, removable brushes and pad. Large sponge soaks up solvent from the chain as it exits the cleaner, reducing drips and mess