For aggressive scrubbing of brick and stone, rough/sealed/unsealed concrete, non-slip resilient floors and vinyl floors, and stripping of ceramic tile, sealed concrete, quarry tile, slate, terrazzo and vinyl floors black .050" Glasspro® nylon fibers impregnated with 80 grit silicon carbide. 1-3/4" trim. Replaces brown and black pads. Block is heavy duty plastic for long wear without chipping, cracking or busting. Metal clutch plate is included. BRISTLE COLOR MAY VARY FROM PICTURE SHOWN. THIS DOES NOT EFFECT QUALITY. 11" Regular Stripping Brush (80 grit) $131.18 12" Regular Stripping Rotary Brush (80 Grit) $158.17 13" Regular Stripping Rotary Brush (80 grit) $179.25 14" Regular Stripping Rotary Brush (80 Grit) $210.55 15" Regular Stripping Rotary Brush (80 grit) $242.89 16" Regular Stripping Rotary Brush (80 grit) $263.34 17" Regular Stripping Rotary Brush (80 grit) $294.36 18" Regular Stripping Rotary Brush (80 grit) $320.24 19" Regular Stripping Rotary Brush (80 grit) $341.55 20" Regular Stripping Rotary Brush (80 grit) $378.88