Additional Details ------------------------------ Bullet point: THE STRING THAT PUT POLY ON THE MAP: Luxilon Big BAnger ALU Power 16 Gauge - 125 Polyester (Poly) Tennis String Set - 40 Feet in Silver is the string that helped usher in the polyester revolution. Its firm, monofilament construction allows for much greater durability, while helping players impart heavy spin on the ball. This string is designed for advanced players. Product description: If you're looking for a poly string with great playability, then Luxilon's ALU Power in 16 Gauge (125mm) is the perfect place to start It adds more durability to the strings, as well as extra spin, but you sacrifice a tiny bit of power and can be hard on arms that have prior issues. Poly strings are also excellent as one-half of a hybrid string setup, and are usually paired with a softer, multifilament. Key String Features: Playability: 7 out of 10 Durability: 8 out of 10 Spin Generation: 9 out of 10 Control: 7 out of 10 Arm Comfort: 5 out of 10