Radial Accelerating Disk technology dates back several generations with hints of it that can be found in the RAD4 Core. It features an extremely dense modified disc shape that generates substantial torque. So much torque, it reigns supreme at the top of the Premier line with a differential higher than any other ball in its class. When primed at 1500-grit polished, the shape the Code Black creates is nothing short of that unmistakable Storm backend charge.