A newly developed, high-performance and versatile co-polyester string designed to offer improved playability, feel and control while generating extreme power and intense spin and bite. Utilizes and Innovative chemical composition in combination with the high-powered polyester monofilament fiber designed and shaped to generate maximum power, control and spin amplification as well as improved tension maintenance. Gauges: 17 / 1.20mm, 16L / 1.25mm, 16 / 1.30mm Length: 40ft / 12m Set Construction: Co-polyester Colour: Dark Silver