The gamma tnt2 touch 132mm tennis string set is 122m 40ft long to fully re string one racket the tnt2 touch is the first multifilament string manufactured using second generation thermo nuclear process tnt2 that significantly improves its performance to ensure great power without compromising on control the tnt2 enhances dynamic elasticity and dynamic resiliency which enables the ball to stay longer on the strings for maximum control and accuracy and ensures that more energy can be retu