The Tour AD DI is designed to provide more power and stability. The Tour AD DI, manufactured exclusively at Graphite Design Japan, has been integrated with Toray Companys new Nanomaterial technology in the tip section of the shaft. This unique technology allows the player to create an epic IMPACT on ball speed while still providing exceptional feel and control. The mid bend profile of the Tour AD DI allows the player to load the shaft properly, yet maintains a firm enough tip section through IMPACT producing optimal spin and launch conditions. Result, the Graphite Design Tour AD DI will deliver players to the next level in shaft performance and impress an epic IMPACT on your game! Revolutionary technology, design and the most advanced materials are trademarks in all Graphite Design shafts, making them the highest quality premium golf shafts on the market today. Validating the companys Tour AD logo, all of Graphite Designs PGA Tour-proven shafts specifically promote Accuracy and Distance. These key competitive advantages are helping professional and Senior golfers optimize their games after switching to Graphite Design shafts. Graphite Design continues to be the most dominant shaft on the JGTO Tour and has been for the past ten years and counting.