When a straighter option is imperative, look no further than polyester. Not only does it look good, it will always perform exactly as expected. Hooking at spares can be challenging enough on tougher patterns. Take the oil out of play and choose polyester. THE STRAIGHT AND NARROW The Traditional 3-piece Core enhances predictability no matter who rolls it. Whether it is a beginner s first ball or a touring professional s main spare converter, everyone can rely on this tried-and-true core. COVERSTOCK: Clear Polyester WEIGHT BLOCK: Traditional 3-piece Core FACTORY FINISH: 3500-grit Polished BALL COLOR: Clear FLARE POTENTIAL: Low WEIGHTS: 12-16 lbs.