Compound Step 1 - 12ozUtilizing the latest in abrasive technology, 303A(R) Compound (Step 1) removes severe defects, including swirls and deeper scrapes and scratches. It is also the first step to flawless paint depth and clarity. Features: Strong and effective paint compound Removes up to 1500 grit scratches Use on both single-stage and base clear paint systems Can be used by hand, Rotary, or DA polisher Engineered to eliminate the most severe defects