Chimney has been filling the supply and accessory needs of over 8,000 Hearth Stein retail chimney sweeps and contractors for over 25 years. Chimney is privileged to serve over 80% of the fireplace professionals in America. Founded by Robert Daniels Sooty Bob in 1978 Chimney has grown from a one-man operation to a national network of six warehouses and a manufacturing plant. From its headquarters in Fairfield Iowa Chimney plays an important role in supplying the chimney industry. . Made with 1 1/4 steel. Easily connect to 1/2 electrical*. Connect to all ProKleen tools. Snap locking mechanism allows rotation in any direction. Wont unscrew accidentally. Available in three lengths