Wilson NXT 17 Tennis String in Natural Colour_Yellow For the demanding player looking HJ8990-667-S Recommended String Tension 48 Shoe Size (US):11M / 12.5W cf-type-grip

For the demanding player looking for power

What makes it unique is that rather than being stiff like many control strings

the string will perform the same while increasing the string’s longevity

XL: Soft feel for excellent playability and resilience

Reduce tension at least 10% lower than nylon strings to provide optimum playability as 4G Rough does not suffer from tension loss common to other strings

Wilson NXT 17 Tennis String in Natural Colour_Yellow For the demanding player looking HJ8990 667 S Recommended String Tension 48 Shoe Size (US):11M 12.5W cf type grip For the demanding player looking for power What makes it unique is that rather than being stiff like many control strings