The dunlop s gut 130mm tennis string 200m reel offers an excellent value for money to provide players with an all round playability and durability which ensures an excellent and long lasting performance on the court this good value multi filament string is constructed of a compressed mono filament central core a mono filament dyna tec fibre coil and highly elastic twisted mono filament outer wraps the string provides an excellent amount of power ensured by highly elastic synthetic fibres