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.
