This is a square profile monofilament co-polymer + polyolefin string with a Thermo Foil Cooling Process finish. This revolutionary "square" string offers exceptional and superior playing experience. Manufactured by a dual process of extension and axial twisting, this high specification co-polyester offers awesome control and comfort. The twisted profile surface will enable you to create huge amounts of spin, giving the ultimate combination of control and power. Gauge: 1.26mm (16L) Colours: Black, White Advantages: Power, Control and Feel.The item "Ytex Quadro Twist Tennis String" is in sale since Monday, August 20, 2018. This item is in the category "Sporting Goods\Tennis\Strings". The seller is "stringersworld" and is located in Essex. This item can be shipped worldwide.