Square Scrub - 20 Inch Blue Driver Pad (#SS P0511BLU) - 5 Per CaseThis medium to heavy duty Blue pad can be used for heavier cleaning and buffing situations but primarily used as a spacer pad. Always check spacer and driver pads frequently for wear and replace as needed! Use wet or dry on VCT and tile. Can be used for heavier cleaning and buffing situations. This medium to heavy duty Blue pad can be used for heavier cleaning and buffing situations but primarily used as a spacer pad Always check spacer and driver