The Danger Zone Pro-HP Hook is the most aggressive ball in the Zone Pro line, with extra hook, extra power and an even arc right out of the box. It is similar to the Zone Pro Azure in overall strength but cleaner through the front. The ball is designed for the high-performance stroker who needs a powerful hook and is best on medium to oily lanes, or where more mid-lane arc is needed. A new proactive manufacturing process creates the strong hooking pattern of a dull ball, but with a cleaner front end than prior dull proactive materials. The specifications are: Color: Black; Coverstock: Proactive MTX-1 Urethane; Surface Factory Finish: Dull Micro-replication abrasive; Available Weights: 10-16 (including 11 ½); Part Number: 60-102987; Hook Potential: 22-13; Typical Length: 3; Typical Backend: 11; RG Maximum: 2.620; RG Minimum: 2.560; RG Differential: 0.060; Average RG: 5.4; Track Flare Potential: 10.