The Revolution IST - Burgundy combines the popular PowerKoil 18 coverstock an all-new double dense Revolution core design to produce one of the most aggressive reactive combinations in history. This combination creates a more skid/snap reaction than the previous two reactive 'IST balls with the highest hook potential available in a reactive urethane ball. The 'IST - Burgundy is perfect for medium to heavy oil lane conditions and a wide array of bowler styles.