Rotary Brush, Machine Size 17 in, Pad/Brush Size 17 in, Bristle Material Polypropylene, Pad/Brush Shape Round, Floor Application Cleaning, Scrubbing, Block Size 16 in, Bristle Dia. 0.028 in, Bristle Color Black, For Use With Mfr. No. MV-SS300-0001, MV-SS300-0002