Kirschbaum Pro Line II 1.30 is a co-polyester tennis string designed for players seeking a balance of control, spin, and comfort. Its smooth, round monofilament construction delivers a predictable response with a more forgiving feel than many firm competition polyesters. The thicker 1.30 mm diameter provides added durability and a controlled response for players who hit frequently and aggressively.
Intermediate to advanced players who generate their own power and want a controlled polyester string without an excessively stiff feel. Particularly suitable for aggressive baseliners and all-court players who prioritize consistency, durability, and a balance of control and comfort.
| Material | Co-polyester |
| Construction | Round monofilament |
| Gauge | 16 / 1.30 mm |
| Length | 660 ft / 200 m |
| Surface | Smooth |