Zefal Clean BrushDeveloped with professional mechanics, the ZB Clean brush is the essential 3 in 1 tool for cleaning the chain, freewheel and derailleur. Composed by 2 brushes ( Big and Small) and 1 scraper cleverly stored in the handle, it allows an efficient cleaning of the hard-to-reach areas of your bike.* Big Brush - Ideal for cleaning the chain and freewheel.* Small Brush - Perfect for derailleur and bearings.* Scraper - Plastic scraper for an accurate cleaning of the freewheel (compatible 8-9-10-11 gears)* Dual Material Handle - Ergonomic and non slipperyAvailable in a set of 3 which includes an extra 2 different sized brushes to cover cleaning the rest of your bike