Topspin CyberWhirl 17g (1.24) 12m SetThe Topspin Cyber Whirl Blue Tennis String is a co-polyester tennis string of 3 Generation with pentagonal (5-side) profile.
This structure gives the tennis string Cyber Whirl exceptional spin and bounce of the ball generates extremely high speeds.
In addition, the tennis string provides good control characteristics and effectively prevents movement of the string.