- Players who are used to playing with co-poly strings.
- Players looking for an arm-friendly, power/control well-balanced string with exceptional durability, tension stability and feel
- 15 and 16 gauge: Recommended playing level: UTR 9-16+, 5.0-7.0 NTRP, LK: 4-1, college players, ITF players, etc... (advanced, high-performance level)
- 17 and 18 gauge: Recommended playing level: UTR 6-9, 4.0-5.0 NTRP, LK: 9-5 (intermediate-advanced)
- High-level junior players from age 13 and up
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