The Finish Line Pro Chain Cleaner Solo is the latest version of Finish Line’s chain cleaning tool which they have been making since 1988. It was one of the first chain cleaners on the market & remains one of the best. Finish Line recommend using the chain cleaning tool once or twice a month to maximize your bicycles chain life & enjoy a cleaner, smoother, & more efficient drivetrain. The chain cleaner attaches to your chain without the need to remove it from your bike. The proprietary rotating brushes get into all parts of the chain. In the newest version of the chain cleaner Finish Line have changed the exit angle on the cleaner from 90 degrees to 47 degrees, which virtually eliminates drips & spills. An additional row of scrapper pads have been added for enhanced side-plate cleaning & a large magnet has been added to attract & hold magnetized wear particles & is located at the bottom of the chain cleaner. Features An easy & convenient way to keep your chain clean use a chain cleaner to remove caked on dirt & end up with a chain looking as good as new chain cleaners help prolong the life of the drive chain if used regularly triple rotating brushes & side scrubber pads ensure every nook & cranny is reached oversized super strong magnet collects metal wear filings that normally prevent the chain working at its best 30 degree exit angle & industrial quality foam insert totally eliminates cleaner dripping on the ground ergonomic handle & easy closure clamp make this an easy one-handed-use tool