SONIC PRO, THE NEWEST STRING INNOVATION FROM HEAD, IS THE IDEAL STRING FOR THE NEW EXTREME RACQUETS. MADE FROM AN UNIQUELY REFINED CO-POLYMER POLYESTER WITH A SOFT MOLECULAR CONSTRUCTION, THE SONIC PRO STRING OFFERS SUPERIOR TOUCH, EXTRA POP AND SPIN WITHOUT SACRIFICING CONTROL. THIS EXCEPTIONALLY DURABLE STRING OFFERS EXCELLENT RESPONSE AND PLAYABILITY THAT WILL MAKE A REAL DIFFERENCE IN TODAY'S FAST GAME.
