This five pack of 1.25 ” Nylon Utility Brushes is designed for scrubbing especially tough stains. Ideal for use on many surfaces around the home, including carpet, ceramic tile, grouting and more. It is always recommended to spot test any surface in an inconspicuous area prior to scrubbing to ensure scratching does not occur. This Nylon Utility Brush, part number A1230-005-5, works with models MC1230, MC1270, MC1350, MC1375 and MC1385.