The Tecnifibre X-One Biphase 1.24 tennis string is ideal for players looking for superior durability, power and control. It provides good tension maintenance and a gut-like feel.This multifilament sting is constructed from High Heat Capacity (H2C) fibres that deliver superb feel and power, and Polyurethane fibres that minimize shock and improve comfort. The string utilises the new Biphase process that increases durability by up to 20%. The Tecnifibre X-One Biphase has a 17 (1.24mm) gauge and is available in a 200m 656ft. Key Features of the Tecnifibre X-One Biphase 1.24 Tennis String 200m Reel. Technology: multifilament, PU trimerized + H2C, Elastyl fibre, Biphase process. The item "Tecnifibre X-One Biphase 1.24 Tennis String 200m Reel" is in sale since Monday, May 30, 2016. This item is in the category "Sporting Goods\Tennis\Strings". The seller is "sweatband" and is located in London. This item can be shipped to United Kingdom.