Rotary Brush, Application Scrubbing, Sweeping, Fits Machine Size 28 in, Shape Round, Material Polypropylene, Bristle Material Polypropylene, Bristle Color Black, Brush Diameter 14 in, Trim Length 1 7/8 in, Block Size 13 1/2 in, Compatible with Manufacturer Part Number T5, T500, T500e, T5e, Bristle Diameter 0.04 in, Compatible with Grainger Part Number Not Applicable, Features For Indoor or Outdoor Use, Includes (2) Brushes