After your balls have taken care of you on the lanes, take care of them before you put them back in the bag. Ball Liquor removes oil, dirt, and general gunk from the ball’s surface. Revives natural tack to ball surface for ultimate lane gripping power. For use on all bowling balls. Approved for use before and after USBC competition. Use something stronger, pure and probably not on the USBC approved list (Laughing But Serious) to remove thick belt marks.
Your balls take care of you, so you should take care of your balls.