Heavy-duty bicycle chain cleaner with EcoTech Cleaner & Degreaser Concentrate and chain lube Cleaner clips directly to the chain--no need to remove the chain from the bicycle Three-brush rotating design and scrubber pads clean the chain quickly--usually in less than a minute 30-degree exit angle eliminates mess; magnet at bottom collects metal filings and various contaminants Clean your chain without removing it--in just one minute