The design of this brush is perfect for cleaning corners and other difficult to reach areas. The Triangle Brush is designed to enhance your steam cleaner's cleaning power by giving you the ability to scrub away stubborn, stuck-on dirt and grime. The nylon bristles offer scrubbing power, without scratching surfaces such as tile, porcelain, natural stone, formica, and other hard surfaces. It is always recommended to spot test any surface in an inconspicuous area prior to scrubbing to ensure scratching does not occur. This Triangle Brush, part number A275-001, works with model MC1275.