This is a combination tool with a top mounted lever to switch between carpets and bare floors. For bare floors a brush strip around the perimeter pops out to provide a soft, non-scratching brushing action. Notches along the front allow dirt to easily enter the nozzle. For carpets and rugs, the brush strip is recessed, allowing the channeled steel sole plate to contact the carpet, pulling air through the nap to clean it. This nozzle replaces the earlier #120410000 For similar products see our list of current Nilfisk Vacuum Accessories.