Bowling Ball Guide
Blue Hot Flame
Blue is hotter, this medium rg, low differential core combined with the Curelyon2TM with REACTAFLECT coverstock gives ample length and a hard charge to the pins.....

Factory Finish:1500 grit polished
RG:2.634 (Medium-High)
Differential:0.003 (Low)
Hook Potential:12 dull/8 shiny