Flossing works wonders on your teeth, right? Your bike deserves the same treatment and for that there is Finish Line Gear Floss. It's a microfiber rope which works by attracting, removing, and holding grime. Gear Floss is the perfect means to clean hard-to-reach places like cassettes, chainrings, jockey wheels, hubs & spindles, and bottom bracket/crank interfaces. Other materials simply move grime around, but microfiber works by capturing dirt, grease, and particles inside its star-shaped grooves. Simply slide the Gear Floss back and forth for the ultimate in bicycle component detailing. Microfiber rope is perfect for attracting, removing, and holding grime Use to clean cassettes, chainrings, jockey wheels, hubs & spindles, and bottom bracket/crank interfaces Tear-resistant and washable Contains 20 microfiber ropes, w/ each rope 20"/510mm in length