The Roto Grip Idol bowling ball begins the next generation of upper mid-performance bowling balls. This ball introduces the Ikon core which helps provide good backend by pushing the limits of a symmetrical core. This ball also introduces the MicroTrax-S18 Solid Reactive coverstock. This cover uses Nano technology and provides more traction and is more aggressive than previous coverstocks in this line. This ball is ideally used on medium to heavy oil conditions. *There will be some variance in color due to the Nano material. This is due to "phasing". Some of the balls with phasing have a white color in them and some may appear to have water spots. There may be a variety of hues of the Magenta/Purplish color.