- Crown Jewel

First Impressions
The Brunswick Crown Jewel comes in an exclusive Gold Sparkle look and features a symmetrical Bullet Core with a 2.696 RG and a 0.019 differential. What sets this ball apart is its harder durometer polyester material, which creates even less friction than typical polyester balls. The surface comes polished out of the box with Crown Factory Polish, and the ball is available in weights from 10 to 16 pounds. Comparison
Compared directly to the established Brunswick TZone line, the Crown Jewel's harder polyester blend should produce even less friction and therefore more precise spare shooting. Both balls reach a reaction shape strength of 99, making them extremely straight-rolling. Where the TZone line carries a 2.715 RG, the Crown Jewel sits slightly lower at 2.696, though both share the identical 0.019 differential. On the Lanes
The Crown Jewel is ideal for bowlers just starting out and as a spare ball for experienced players. Its extremely low hook potential makes it a reliable tool on very dry lane conditions. User reports indicate the ball also works for two-handed bowlers who want to play tight angles, and that it has produced multiple 600+ series. The specially hardened polyester composition should generate less friction on the lane and allow more precise spare shooting than other plastic balls. With its predictable, straight path, it's especially well suited if you need a consistent, controllable ball reaction for your spare game.