RRoto Grip's newest addition to the Sword™ Line is the all new Grand Illusion™. Once again we've created a ball that is a perfect fit within our product line. This medium RG and differential bowling ball falls right between the ever popular Cell™ and the always consistent Illusion™. The combination of the Ultimate Vision™ solid reactive and the Helios II™ core delivers added length and strong mid-lane reaction on these medium to lighter volume patterns. The Grand Illusion™ is extremely versatile, so don't deceive your scores by leaving home with out it!