Dual purpose, split-tip polypropylene fibers. Stiff inner fibers sweep concrete, asphalt, and wood with ease. Soft outer fibers sweep away fine dirt and dust. Steel die-cast connector bolted into 1-1/8" thick solid hardwood block and steel tee-pee broom brace to secure 60" handle, defer stress and balance the load during heavy-duty sweeping. 3" Bristle.