D'Addario Restore deep cleaning polish is a formula designed to remove swirl marks and even light scratches from all clear coated instruments. Step 1 of a 3 part system. D'Addario Accessories 3-Step polishing system ensures your instrument's finish maintains it's luster and durability. Whether you need a deep cleaning compound for grit and grime removal or a glass-like shine, we've got the right polish for you.