The Luxilon 4G 125 Tennis String is a 12-meter gold cut from the reel, built for advanced players who want control and consistent tension. Made from durable co-polyester with molecular chains aligned to resist tension loss, this luxilon tennis string holds its playing feel longer than older polyester strings. At a 1.25mm (16L) gauge, it delivers a crisp, controlled response with more comfort than early stiff polys. As a control tennis string, it suits all-court and baseline players who generate their own power and want precise, repeatable shot-making. Ideal for intermediate to advanced players in full-bed or hybrid setups.