The low profile bench dogs fit neatly into 3/4 " holes on workbenches to create a stop on the opposite end of your vise. They are a perfect solution for sanding, planing or just holding stock on your work bench. The low profile will let you work standard 1/2" or thicker stock without getting in the way of your tool. The low profile bench dogs with wide jaws attached exceeds for square inches of pressure, which virtually eliminates any risk of marking the wood. The wide jaws slide easily over the top of the low profile bench dogs and are fastened by two standard screws which are included in the low profile bench dog with wide jaw package. The low profile package comes with 4 bench dogs, the wide jaw package comes with four complete low profile bench dogs with wide jaws.