3M, 20" Black, 7300 High Productivity Stripping Floor Pad, 3/8" Thick, Offers Fast Efficient Removal Of Both Normal & Heavy Build Up Of Soil & Finish, Optimizes Cleaning Effectiveness Of Stripping Chemicals, Features An Aggressive Mineral For High Cut On Demand, Quickly Removes Deep Marks From Foot Traffic Or Heavy Equipment & Rust Stains From Metal Furniture, Open Design Increases Performance, Minimizing Time & Effort, Recommended 175-300 RPM Floor Machines Or Automatic Scrubbers. 20" Black, 7300 High Productivity Stripping Floor Pad. Offers Fast Efficient Removal Of Both Normal & Heavy Build Up Of Soil & Finish. Quickly Removes Deep Marks From Foot Traffic Or Heavy Equipment & Rust Stains From Metal Furniture.