Officially, this is Storm’s strongest symmetric ball to date. Starting on the inside, the Centripetal HD weight block is surrounded by the ALL-NEW A.I. (Amplified Inertia) outer core. This new combination drives the RG down and the differential up ensuring this ball spins up fast and a lot! Paired with the TX-23 Hybrid Cover, the Summit provides enhanced oil absorption for even better grip on those slick conditions. Once you get one in your hands it’ll be tough to get it out.