3" Hook-and-Loop polishing backing plate with velcro. diameter:80mm,M14 Thread which match to the M14 adaptor and shaft It's one of the necessary tools for auto detailing. made of high quality. beveled side, velcro diameter is 80mm, M14 thread/screw which match to the M14 shaft.(M16 and 5/8 thread is available). ideal use for the 3" foam pad as the pictures. There are such features of this pad: ◊ ...