Item Type: Tennis StringMaterial: Polyester FiberSize:Length: Approx. 12m/39.4ftWire Diameter: Approx. 1.24mm/17gauge 1[Superior Quality Material] Matte hex spin top class polyester tennis line, high hardness, strength. 2[Excellent Performance] Wire matte crafts to maintain the number of pounds of good performance, more resistant to beating more not easy to drop pounds. 3[Enough Wire Length] The line length is about 12m/39.4ft, enough to use a conventional tennis racket line length. 4[Special Crafts] For MSV Focus Hex features an for MSV extrusion that forms a hex die cast to create an exciting polyester tennis line. 5[High Durability] This method improves its tension stability, providing superior power, control, comfort and good spin.