Columbia 300 brings you the new Speed. We started with the successful Power Torq and set out to create a solid asymmetric motion, perfect for a first ball out of the bag or when symmetric balls like the Power Torq are too clean. The strength of the Speed comes from the all-new cover and core combination. The new Formula 1 cover uses chemistry similar to the popular ERT formulation, but our chemists used a new additive that promotes stronger adhesion throughout the entire lane. We combined the Formula 1 cover with the new super aggressive Shifter core to ensure significantly more overall hook than the Power Torq. The Speed features Brunswick's innovative outer core technology called DynamiCore. This industry-leading technology is a more durable outer material that yields less compression upon impact increasing hitting power and creating an undeniable difference in sound and pin carry. Performance Level: High Performance Lane Condition: Heavy Oil Coverstock: Formula 1 Hybrid Cover Type: Hybrid Reactive Core: Shifter (14-16 lbs) Light Weight Core: Generic - Asymmetric Core (12-13 lbs) Core Type: Asymmetric Finish: 500, 1500 Siaair Micro Pad Color: Crimson / Black / Cherry RG / DIFF #12 - 2.605 / .042 #13 - 2.582 / .042 #14 - 2.499 / .038 #15 - 2.469 / .043 #16 - 2.479 / .040 Ball Reaction: Strong overall hook Warranty:2 Year Limited Warranty