D1 Polish Enhancer the final step if you are a paint fanatic. CSI has developed Ceram-X polish that says you don't need any other product for doing normal auto body repair polishing. Well I wish this trade was normal, LOL. It never was or will be. If You have a project that just needs to go to the next step in gloss levels D1 Polish Enhancer is the product for you. Use this polish with a rotary polisher or DA random orbit polisher for the show winning finish.