Big Hitter Silver7 features 7 sharp edges for massive spin. Tested as #1 in Tension Maitenance by Tennis Warehouse University.

Top 3 in Spin, Top 4 Overall, and Top 5 in Comfort by the Racquet Sports Industry.

High control lets you take huge rips at the ball and put it exactly where you want it.

Premium materials using poly-polyether resins treated by a series of thermal heat processes to strengthen the molecular bond delivers keeps the string’s structure intact.   

This leads to the best Tension Maintenance and also keep the seven edges sharp.    

The seven edged string bites into the ball and then snapping back to give incredible spin and pin point accuracy.   

Designed for advanced players looking for a premium poly at a lower price.