The Wilson Hollow Core Pro 16 Tennis String Set is already a classic that provides amazing comfort, control, and superb power to whoever uses this set of strings.
This sythetic gut strings are one of the best out there. They are engineered with air-filled hollow core dual extrusion core and nylon outer wraps to provide a crisp feel for the player.
|String Lenght||12.2m / 40 feet|
|Benefit||Arm Friendly, Power|
I've used the product for 2 years. Excellent.