A combination of wraps & pressure injected resin makes the Wilson Reaction 70 badminton string a great choice for those players who seek excellent feel & control, while its multifilament construction helps generate more power & is recommended for players suffering from arm problems. This white string with a tri-twist polyamide outer is supplied as a 10m (33ft) long set, which is enough to re-string one racket. It has a gauge of 21 (0.75mm).