The dunlop silk 130mm tennis string set has a length of 12m 394ft which enables re stringing one racket the dunlop silk has a gauge of 16 130mm and as its name suggests it provides an excellent touch and feel that is as smooth as a silk the string has a premium construction incorporating a dupont pa66 multi filament central core fibres bonded with thermo elastic pu resin and a super bonded polymer outer coating to ensure superb power and comfort resulting in gut like playability