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designed specifically for advanced-level players by former Top 25 ATP Pro Steve Johnson
25mm Tennis String (Carbon Black)
String Pattern Tension Range Notes Open Pattern (16x19) 48–53 lbs Medium tension for spin and power Dense Pattern (18x20) 45–50 lbs Lower tension for enhanced feel and responsiveness
✅ Tour-Level QualityUsed by professional and collegiate players looking for confidence on full swings
Consistent string bed response across all areas
TOROLINE O-TORO TOUR String (Mint / 17 gauge/ 1.23mm) designed specifically for advanced-level playersBrand Introduction TOROLINE is a high performance co polyester string specialist brand that delivers optimal snapback, enhanced spin, and a soft, comfortable response through its unique ultra slick coating technology. The brand collaborates with former ATP pro Steve Johnson, who reached a career high ranking in the top 25, to test and refine their strings. This American brand has captured the attention of tennis players worldwide with its innovative