The YONEX Poly Tour Fire 120 Tennis String is a great string for big hitters looking for extra spin potential and precision shot making. This new Silicone oil Infused Filament (SIF) technology--monofilament infused with Silicone oil--allows big hitters to experience ultimate spin from intense snapback speeds. Greater snapback produces a powerful spin. SIF Technology allows the string to move faster than conventional models, increasing spin.
Yonex Poly Tour Fire 120 Tennis String Reel Red