Gauge: 16/1.30mm Length: 40 Feet/12.2 meters Material: Co-Polyester Color: Dark Grey Elevate your game with the Solinco Confidential 16 Tennis String Set. This high-performance, versatile co-polyester string provides unmatched playability and control. It generates immense power, intense spin, and sharp precision, giving you a competitive edge. Crafted with innovative materials and a top-tier polyester monofilament, every aspect of this string is engineered to enhance your performance.