isn't the grey a finishing pad as well? Maybe mine's a Wolfgang....softest one I have.
Gray Finishing Foam 6.5" - Composition is firm enough to withstand added pressure during final finishing to remove buffer swirls. It has no cut and will apply thin, even coats of waxes, sealants, and glazes.
Blue Finessing Foam 6.5” – Flat pad has soft composition for applying glaze, finishing polish, sealants, and liquid waxes. Flat pad provides full contact with paint surface to minimize the pressure applied by the user.