The string for stability and control on impact. With the Sensation Control nature Wilson has made a successful quantum leap with regards control and sensitivity. The high quality Nylon core is secured by cushioning liquid crystals. This assures maximum stability and control on impact. In this way you can withstand your opponents toughest shots and you will never loose control. Make sure you get the Wilson Sensation nature , the perfect mixture of control and feel. Highlights: High quality Nylon core surrounded by liquid crystals. Excellent accuracy and touch. agreeable play even with hard shots. constant good playing characteristics.