Golf Balls Tip - new golf balls or or used golf balls? Used golf balls are new golf balls that have been use at least one time. Many used golf ball vendors select the golf balls they will sell to have the look and play of a new ball. Some will "grade" the golf balls into classifications to help you decide if you should play or practice with them. And, you can save a lot of money by buying used balls. Depending on the used golf ball merchant, you can select the brand (such as Titleist Golf Balls) and the model (such as Titleist Pro V1). If you go thru a lot of golf balls, you should absolutely consider trying some of the used golf balls.