The Muck Monkey is designed for regular use with a mixture of short and long durable bristles to remove even the toughest dirtWith four brushed faces you can work dirt loose on every surface of the chain, even in those hard to reach placesLong bristled end is perfect for getting down into the cassette freeing up dirt build up from between cogsCleaning BrushOrangeUPC/EAN/GTIN: 725806801261