The 39800 is a 12” (304.8mm) buttonlock gray floor brush with natural fill. Like this series of floor brushes, the fill is extra heavy to support the brush on any hard floor surface. It glides effortlessly so there is no risk of damage to expensive finishes. The extra thick fill will even handle uneven surfaces without issue, and the wide cleaning orifice will easily handle large debris pickup. The 39800 differs from other brushes in the line because of its buttonlock neck, which is a different type of connection to the wand.