Brunswick's successful relaunch of the Quantum product line continues with the Quantum Bias Pearl. This bowling ball features high-density Quantum Mushroom High RG Asymmetric cores along with a thicker urethane coverstocks. This thicker coverstock offers durability, longevity, and massive hitting power. This ball is unique in that each core has a unique design to compensate for the gross weight of the ball, the core's dynamics, and the balls hook potential. The Bias Pearl uses Brunswick's ECA-XR Pearl coverstock formula to glide through the front of the lane and end with a strong backend reaction and excellent pin carry on medium oil lane conditions.