Our 3M Perfect-It 1-Step Foam Finishing Pad essentially compounds and polishes in one step ??eliminating the time and expense of compounding when used as part of the 3M Perfect-It 1-Step Paint Finishing system. Specially designed foam pads are available in 4?? 6??and 8??diameters with Quick Connect attachment for precise centering or Hookit attachment for quick change-outs.