This low Rg core, combined with our aggressive TEC2 shell, creates a strong hook heavy oil. In fact it strikes the perfect balance between track flare and hook potential without flipping too quickly at the break point. The end result is a strong continuous arc into the pocket. The Rock has more hook than any other ball that Columbia 300 has introduced to date. The coverstock is also very versatile, producing more length and backend reaction when polished.
THIS BALL IS AN X BLEM FROM COLUMBIA. COLUMBIA RELEASES THEIR HIGH PERFORMANCE BALLS UNDER THE X-BLEM LABEL WHEN SMALL NON-PERFORMANCE ISSUES OCCUR. THE CORE AND COVERSTOCK COMBINATIONS ON THIS BALL ARE IDENTICAL TO THE FIRST LINE BALL. A BALL IS LABELED AN X-BLEM FOR ANY ONE OF THE FOLLOWING REASONS:
-COLOR PIGMENTATION
-SMALL PITTING CAUSED BY AIR BUBBLES
-UNIQUE PIN PLACEMENT, TOP WEIGHT, OR BOMB LOCATION
-LABELS ARE ENGRAVED IN UNUSUAL PLACES
-SWIRL PATTERNS OF THE BALL ARE NOT CONSISTANT
THESE DIFFERENCES DO NOT EFFECT THE PERFORMANCE OF THE BALL OR THE ABILITY TO DRILL THE BALL. THEREFORE ALLOWING BOWLERS TO PURCHASE COLUMBIA'S TOP OF THE LINE EQUIPMENT AT A FRACTION OF THE COST.
