Get the cleaning task done effectively with this Duo-Sweep angle broom head. The polypro made plastic block have upright and angle holes with Acme thread. The polypropylene bristle is abrasion resistant, as well as anti-bacteria. Both flagged and unflagged bristle are available. Flagged bristle helps collect small particles, making them ideal for collecting small dust and debris. and unflagged bristle is straight and stiff, making them better suited for collecting larger debris in open areas. Other than normal Polypropylene bristle, PET and PVC bristle is also available. This Duo-Sweep lobby broom with ergonomic design will have superior performance in cleaning convention centers, shopping malls, hotel lobbies etc.