This is a rare find, the Revolution Pro R'Z is an International release. bowlingball.com is your only source for this hard to find Revolution bowling ball. These balls are of limited quantity. If you've thrown any of the Revolution bowling balls, you know you can expect a solid performing ball that gives you a consistent reaction shot after shot. If you haven't had the chance to throw one of these great balls, try one out today...You will not be disappointed! Product Type Bowling Balls