4G features maximum tension maintenance and a cushioned feel on impact, lending itself to excellent playability and adaptability to the modern game defined by power and spin. Boasting the elements of a control string minus the tension loss and discomfort of early polyester strings, 4G sets the standard for players craving precision. The entire composition of this string was designed to help players reach the next level, where it's molecular chains are strategically aligned to minimize tension loss over time and it's poly-ether-ether materials enhance strength and flexibility. The 1.25 mm gauge is slightly thinner than the 1.30, which offers additional feel and control on each shot. On top of its high performance properties, the quality of these strings are unmatched by others. Not even extreme weather conditions, such as rain and humidity, will affect the playability. These strings are highly favored by professionals on the tour, and they are used by the Williams sisters and Grigor Dimitrov.

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