Brunswick 14LB Zone pro active Vintage Johnny Petraglia like NEW (PBA OPEN. Used : Seller Notes:“great condition ready to hit the lanes.The JP Open Pro Am ball was made exclusively for the tournament. It used the same core as the Red Alert Zone and a unique Proactive coverstock that featured a light load of Proactive Particles in the PowerKoil 18 (Danger Zone) base coverstock. This combination produces a ball that was stronger overall than the Red Alert with a slightly ...earlier roll and more even arc due to the Proactive coverstock. The light load proactive cover should also make the ball less sensitive to over-under reaction off the dry boards compared to the Red Alert.”