Like most golf tournaments, The Masters Tournament provides different brands of practice balls at the driving range. Clearly, a professional that uses Titleist ProV1 golf balls is not going to practice for the biggest tournament of his life by practicing with a different ball.  

 Presented here is an entire bag of actual ProV1 driving range balls from The Masters Tournament. Every so often, a single Masters range ball is offered for sale.  Here is the rare opportunity to obtain an entire bag of 20+ actual, Masters Tournament-used range balls.