SFX Ultra Fine Detailing Clay (2 bars) from The Ultimate Finish

4 Recommended by AutoEXPRESS magazine - 'Particularly good on...bodywork and brake dust tests'. Sonus SFX Ultra Fine Detailing Clay is so fine that it will not leave microscopic scratches and cannot be 'over used'. Specifically developed for car enthusiasts who want to clay their car frequently the polishing particle size in Sonus SFX Ultra-Fine Detailing Clay is 29% finer than standard detailing clays designed to remove heavy contamination.