Thank you for viewing. ★ Please ask any questions or confirm any details before purchasing. ★ We cannot accommodate requests after purchase. This is the Storm Infinite Physics. It is new. Please refer to the box for the specifications. It features the stable Atomic Core with NEX Pearl, and the surface has been dulled for ease of handling. Coverstock: ReX™ Pearl Reactive Core: Atomic Core RG: 2.480 (15lbs) Differential: 0.053 (15lbs) Mass Bias Difference: 0.017 (15lbs) Flare: High Hardness: 73-75 Color: Sapphire/Deep Purple/Onyx Surface Finish: 4000 Grit Abralon Fragrance: Mystery Scent The coverstock uses ReX Pearl Reactive. By adjusting the amount of pearl material, it goes straight to the breakpoint smoothly without slipping at the front of the lane. The Atomic Core's characteristic narrow, vertical power retention creates a smooth entry into the pocket, highlighting the excellent pin action that is the charm of the Physics series. The 4000-grit finish makes it less susceptible to oil conditions, resulting in a product with outstanding control performance. It was impressive how it smoothly carried power to the breakpoint without stress, even with a material that is highly directional and resistant to oil. This smoothness creates an explosive action when hitting the pins.