Yonex POLYTOUR Rev 17 1.20 Tennis String Packages White, Size String Package

Firm and responsive, the Yonex Polytour 17 1.20 improves spin with every swing. This polyester monofilament features SIF technology for impressive bite and control. Built for baseliners, the Yonex Polytour Rev 17 1.20 provides easy access to spin-friendly shots! Who's it for? Baseline players with medium-to-fast swings who want a string that grabs onto the ball for the ultimate spin experience. String Technology Silicone Oil Infused Filaments Technology (SIF): helps big hitters hit with spin from intense snapback speeds. The unique pentagonal structure allows the string to move faster for more spin.