Kirschbaum Black Shark 16G (1.30mm) Tennis String

I enjoy Kirschbaum strings very much but for this model it is super bad. This model doesnt give me power even though i strung it in the lower end at 54. I hit the ball hard n my opponents usually can’t return them. But with this model even though i hit it hard, the balls dont carry a lot of power n my opponents found it very easy to turn from defense to offense. Because it gave me so little power i hit the ball even harder and that led me to back injury. This model is a big disappointment. I dont recommend it.

I love these strings. they provide great spin and power. i would recommend these strings to anyone looking for more control.

Low power, amazing crisp feeling and a lot of spin. Great for intermediate level and higher!

Great strings, has immense power and spin. My service packs a punch now and I strung it at 55 with Prince racquet. I bought 4 of them and I have always liked Kirschbaum strings.

Soft, and spin friendly! Im going to be using this string for months to come! Great stuff from Kirshbaum