The most durable version of NXT in the game, NXT Duramax features Abrasion Shields to protect PU-bonded fibers in core and layer extra resistance to string breakage. Perfect for players who prefer the classic, comfortable feel of NXT but struggle with breaking strings, NXT Duramax offers a solution without compromising the impressive power, spin and comfort synonymous with NXT string. This 16 gauge string is slightly thinner than the 15 gauge, which generates enhanced feel and control on each shot.