EXTRA HEAVY DUTY STRIPPING PADS ARE USED WITH FLOOR MACHINES UP TO 350 RPM. EXTRA AGGRESSIVE STRIPPING PAD FOR THE HEAVIEST DUTY STRIPPING JOBS. OPEN WEAVE CONSTRUCTION. 100% POLYESTER FIBER COMES FROM POST CONSUMER AND INDUSTRIAL RECYCLED WASTE. UTILIZES WATER-BASED LATEX RESINS IN BINDING PROCESS TO ELIMINATE HAZARDOUS RESINS. MADE IN THE USA.