The patented Cyclone Chain Scrubber is made with a tough plastic nylon and has replaceable cleaning brushes, Part RBS-5 Replacement Brush Set, for extended product life. The ChainMate features an in-line chain track for less chain resistance. Made for use on all derailleur and most 3-speed and coaster chains. A wide profile and a wide base provide stability, and a large reservoir provides extra solvent capacity. Park Tool ChainBrite is recommended.