MENACING BENCHMARK: The Hammerhead brings an unheard of amount of hook and performance in the mid performance category! STRONG, SOLID COVERSTOCK: The Hammerhead features the Aggression Solid coverstock. Designed for heavier volumes of oil on the lane. A FAMILIAR CORE: The Hammerhead features the Spheroid core, previously found in the Web series bowling balls. This is a fan favorite! AGGRESSIVE FINISH: The Hammerhead features a 500, 2000 Siaair Micro Pad finish to help you handle thick oil patterns. BUY WITH CONFIDENCE: The Hammerhead carries a 2-year limited manufacturer's warranty. Danger is lurking in the depths and ready to STRIKE! Introducing the all-new Hammerhead by Hammer!