The Motion Control Core (MC2) is the latest and most advanced weight block/core system in bowling. The Motion Control Core features "Vertical Dual Density" Technology, a weight block in which the vertical differential of specific gravity is nearly .40 crating built in core mass bias. The side of the ball in which the mass is biased to is identified with a locator pin and MC2 engraving for ease in pre-drill preparation. Drilling results will be more accurate than ever making this core the most effective in the industry today.
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