Product Description Features: Detonator Cor: Mizuno's patented design creates low barrel compression for great performance, while improving impact sound. Cylinder Seaming: Allows for consistent performance and durability across the barrel. Dual Frequency Damper: Mizuno's patented construction combines two different materials for vibration reduction and less flex for higher performance. Double Wall: Gives you higher peak performance right out of the wrapper with a larger sweet spot for more power and forgiveness. 2 Piece Construction: Two piece construction to create maximum performance and enhanced feel.