Kirschbaum Pro Line II Rough 1.25 is a co-polyester tennis string designed for players who want a balance of control, spin potential, and feel. Its textured surface provides additional ball bite for topspin and slice, while the co-polyester construction delivers a controlled response during aggressive swings. The 1.25 mm gauge balances responsiveness and durability, making it a versatile option for competitive players who prefer a textured polyester string.
Intermediate to advanced players with medium-to-fast swing speeds who want dependable control with added spin potential. Particularly suited to aggressive baseliners and all-court players who prefer a textured string with a direct, controlled feel.
| String Type | Co-Polyester Monofilament |
| Gauge | 1.25 mm |
| Construction | Textured Monofilament |
| Performance Focus | Spin and Control |