Spec gauge: 1.15 mm/1.20 mm/1.25 mm/1.30 mm Color Yellow Length Material Polyester Features TCS is a genre of hizyouni revolutionary and poly Series strings and has a new generation and a polyethylene base and tenisusutoringusu to develop your success. Another great feature is the structure of the string have a lemon on leather like surface on the outside is coated with a tight and soft interior of the case side, the string the ball to stay longer hours, Amazing spin performance and practicality. The competition player center of the tension for maintaining performance and it participates in a performance, resilient performance and acceleration performance as well as vibration absorption, topspin, pureiabiritexi- string you want to use.