12″ diameter scrub brush for Oreck Commercial 550MC orbiter floor machine (sold separately) to clean smooth textures or painted concrete floors and other scratch-resistant, high-traffic floors
Polypropylene bristles can be used in wet or dry conditions to remove heavy dirt and debris and... http://bestgoodini.com/19-oreck-commercial-237047-crimped-polypropylene-scrub-orbiter-brush/