You have just discovered the ultimate car detailing clay bar for anyone who makes the effort to maintain perfect paint. The Sonus SFX Ultra Fine Detailing Clay Bar is a new cleaning system that safely removes stubborn paint contamination without harming your car's clearcoat. Sonus SFX Ultra Fine Detailing Clay gently smoothes, slicks and cleans your car's paint in one easy step. Acid rain, brake dust, road silt and a range of fallout are brutal enemies of your car's beautiful clearcoat paint finish. Regular use of water and Sonus Gloss Shampoo wash away loose dirt but not the bonded contamination. The sun helps these pollutants on their journey to penetrate, oxidize and eventually destroy your paint. Traditional automotive detailing clays are designed to remove heavy contamination. They work by sheering off dirt particles on the surface of your car's paint. The more aggressive the clay, the heavier the contamination load it can handle. NOTE: A medium to heavy-duty detailing clay will remove harsh, stubborn contamination, but may also create fine scratches that require polishing to remove. Sonus SFX Ultra Fine Detailing Clay is so fine that it will not leave microscopic scratches. It cannot be over used. In fact, Sonus SFX Ultra Fine Detailing Clay is so fine that it will not remove most waxes. Use Sonus SFX Ultra Fine Detailing Clay regularly to remove: Road grime (tar, grease, tire rubber) Bug and bird remains Rail and brake dust Fine paint overspray Road salts Hard water deposits Factory fallout and acid rain When used as directed for regular maintenance, one bar of Sonus SFX Ultra Fine Detailing Clay will clean your vehicles paint 4-5 times. Includes: Two (2) 80 gram (3 oz.) bars of Sonus SFX Ultra-Fine Detailing Clay and a flip-top storage container. Sonus