With its original formulation, U-Clean U-Score delivered consistent, repeatable performance for all But lane conditions, lane surfaces, and lane oils have changed significantly That's why we are introducing a new and improved version of the product that launched the Storm brand This item is a cleaner for the surface of your bowling ball. It will help to remove oil and belt marks from the surface of the bowling ball. It was designed for use on a urethane bowling ball but works well on all cover types.