Feature:1. Polyester String: Adopts new polyester material, durable with excellent control, resin material has been added to enhance the strength and elasticity, suitable for long term use.2. Wide Application: Belongs to the kind of primary round hard line with high resistance to hitting, able to reduce the of injury, suitable for all kinds of people.3. Application Range: Designed for offensive players with high durability, suitable for elevated players to improve your level and performance, making you feel ease during use.4. Long Length: Our string reel has about 200m/218.7yd long wire, can be applied for 16‑19 times, enough for long term use, improving your using experience.5. Easy to Use: This tennis string can be installed within a short time, simple for installation and removal, will not take much effort or time, time and energy saving.Specification:Item Type: Tennis Racket StringMaterial: PolyesterColor: RedApplication: for Amateur, Daily TrainingGross Weight: Approx.440g/15.5ozSpecification: 200m/218.7yd Per ReelWire Diameter: Approx.1.3mm/0.05in Package List:1 xTennis Racket String