Additional Details ------------------------------ Product description: Some of the most buzzed-about string on the market, Luxilon 4G Tennis String is noticeably different from its polyester predecessors in that it has very strong tension maintenance. The power level is slightly lower than previous Luxilon offerings, which should aid 4G s target player. Luxilon 4G seems to be very well developed to aid the power and spin focused modern game. If you want to flatten the ball, you can swing away and control your depth quite easily. If you want to hit with topspin, your low to high acceleration can easily create a troublesome, high-kicking ball for your opponent. Also, if you find yourself cutting out poly strings due to tension loss, you will love the fact that Luxilon 4g boasts 30 percent improved tension maintenance over strings like Luxilon ALU Power. Color: Gold Construction: Co-polymer Monofilament Gauge: 17G (1.25 mm) (Please note, that Luxilon is now classifying 1.25 mm as 17 G.) Length: 40 ft (12.2 m) For more information on strings, see our following blog posts: The Diamond Anniversary: Luxilon s Limited Edition Alu Power Tennis String 10 Best Soft Co-Poly Strings to Try Need help selecting a string? Check out our Choosing The Right Tennis String guide for more assistance.