Genesis GAMT711 Hook and Loop Backing Pad 3-1/8-Inch Low profile triangular shaped design allows access to tight spots and corners for complete removal of material High density hook and loop attachment system holds accessories securely Ideal for detail sanding jobs utilizing quick and easy attachment of hook and loop sandpaper Primarily used for "Grinding/Sanding" with your Oscillating Tool Genesis Universal Quick-Fit Oscillating Tool Accessories fit most standard AND tool-free oscillating tools, including the popular Genesis GMT15A