Color-coded floor sweeps to make product selection and identification easier. Constructed with foam blocks and synthetic filament, these materials are durable, resist acid and bacteria and can be used in wet or dry sweeping applications. Available in fine sweeping (flagged green polystyrene) for fine dust and dirt on smooth surfaces and medium sweeping (yellow polypropylene) for general purpose sweeping on semi-smooth surfaces. Synthetic foam block made of durable materials designed to resist acid and bacteria.