The Roto Grip Idol Pearl uses the Ikon core that changed the perception of the HP3 line for Roto Grip. This core has a low RG symmetrical shape with high differential that generates flare as well as excellent motion down the lane and on through the pin deck. The Idol Pearl introduces the xTrax-P18 Pearl Reactive coverstock which was designed to complement the original Idol bowling ball. This cover is finished with a 1500 grit pad and then polished. This ball can handle most any lane condition but is best on medium to medium/heavy oil. *There will be some variance in colour due to the Nanomaterial.