The Abba Chain Brush is designed to agitate dirt and grime build ups on your chain and sprockets. The brush works wonders in conjunction with a chain cleaner thanks to the strong, firm bristles.Multi faced head with 3 sides of cleaning bristles.Ergonomically shaped handle for comfort.Strong firm bristles for easy cleaning.Long end bristles for sprocket cleaning.The Abba Chain Brush features a multifaced head with all sides features short, stiff bristles that are perfect for agitating all 3 of the 4 sides of a chain at once. The firmness of the bristles ensures that the dirt moves before the bristles, flicking it away. They penetrate deep into and between the chain links and rollers for a deeper clean and longer life for your chain. The opposite end of the brush features long, firm bristles that are ideal for cleaning around your sprocket.