Ashaway-Zyex MonoGut 1.27/16G Tennis String Natural-(AZYEX127NA:SET) The Ashaway Zyex MonoGut 1.27/16G Tennis String Natural For natural-gut like playability, Ashaway Monogut ZX 16L String takes full advantage of the Zyex material in a 100% monofilament construction. The absence of polyester materials increases the elongation properties for increased comfort and power while the monofilament construction offers enhanced durability compared to multifilaments. Unlike both polyester and nylon strings, Monogut Zyex maintains its tension longer for reliable performance throughout the life of the string. Our testers fel... Built For Power | Great For All-Court Players | Consistent Performance Size - (See Description) | Color - (See Description) Authorized Ashaway Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.