Professional chimney service and maintenance people need the best equipment available, The often choose and use this round wire chimney cleaning brush manufactured by Rutland, The heavy duty bristles are made of stiff wire which is oil tempered, This brush provides effective removal of creosote, soot and other debris from most chimneys, The heavy duty single spiral spindle design combined with durable 3/8 inch thread fitting makes it fit for heavy use by professional chimney service personnel, Professional-grade chimney brush, Durable oil-tempered 22 gauge , 0286 wire bristles, Single-spiral spindle design with a heavy-duty plated 3/8"" thread double-swaged fitting, 6"" diameter, SKU: RTLD142