4 SIDED SQUIRCLE FIRM PREMIUM CO-POLYMER
PENETRATING POWER AND DURABILITY
16G/1.28MM, 17G/1.23MM TANGERINE
39 FEET/12 METER SET
656 FEET/200 METER REEL
Recommended Tension: 46-56 LBS
Made in Germany
For the big hitter seeking a high-powered, firm co-polymer string. Deserving of its name, the Sonic Boom produces a loud ferocious "pop" upon every hit. If you desire penetrating pace and demand crisp consistent control and durability, this one is custom tailored for you. Look for your personal motivation in every pack.
Specially developed blend of co-polyester, crystalline polyether and premium additives providing industry leading tension stability, yet remaining firm and durable. The new generation special molecular property is designed to withstand the high impact of today's modern racquet and player. Treated with MFC (Minimum Friction Coating) to provide optimum string snap-back for increased spin and ease of stringing.