For tough creosote removal you need a Rutland Flat Wire Square Chimney Cleaning Brush. Constructed with durable steel, the bristles on this brush provide a thorough clean that helps dislodge creosote. Using this brush prior to applying a chemical creosote remover, such as TSR, makes it easier to eliminate even the toughest build-up. This chimney brush can also be attached to quick connects for rapid assembly. Available in four sizes.