Daily Cleaning Brush - Replaces Red Floor Pads. For medium to mildly aggerssive cleaning. Replaces red floor pads. Outlast floor pads 100 to 1. More efficient than floor pads. Brushes are better for the environment. Available in 11" - 20" diameter showerfeed blocks. Includes wear indicator. Irregular bristle length for optimal cleaning on uneven surfaces. Ideal for use on ceramic tile, concrete, marble, quarry tile, slate terrazzo and VCT. .022" nylon fibers impregnated with 320 grit silicon carbide.