Weiler 42164 Perma-Sweep 24" Block Size, 3" Trim Length, Flagged Green Polystyrene Fill, Fine Sweeping Floor Brush - PERMA-SWEEP Floor Brushes- Synthetic Foam Block - Made of durable materials designed to resist acid. Weiler offers color-coded floor sweeps to make product selection and identification easier. Constructed with foam blocks and synthetic filaments, these materials are durable, resist acid and can be used in wet or dry sweeping applications. Fine Sweeping - For fine dust and dirt on smooth surfaces For Perma-Sweep Floor Brushes, use Perma-Flex Handle No. 44301 (15/16"" x 60"") Guaranteed for the life of the brush! Handle not included in price - order handle separately. Industrial Grade - Engineered and manufactured to maximize performance and minimize operating costs in the most demanding surface conditioning applications. The use of superior construction, the highest quality materials and the most stringent manufacturing processes deliver the lowest cost-of-use and most consistent performance in heavy production environments.. Made in Sri Lanka.