|The new developed Kirschbaum Black Shark is based on ten years of know how from the Super Smash Spiky with its diagonal surface structure.
Creating distinctive peaks to help grip the ball on impact, Kirschbaum has patented a new technique for optimum spin production. This octagonal profile string makes creating both
topspin and slice easy. The Kirschbaum Black Shark, being a soft polyester, also
offers nice ball pocketing and excellent control. This comfortable
string is also easy to string in comparison to other polyesters.