Yonex Polytour Rev 120 / 17 Tennis String (White) – White

  INTENSE BITE. ABSOLUTE CONTROL. Introducing POLYTOUR REV!  As a co-polyester monofilament, this string will give you the needed control to execute your most powerful strokes. Packed with 8 sides, POLYTOUR REV not only puts a tight grip on the ball, it also comes with a SIF (Silicone Oil Infusion), which helps the strings snapback powerfully during impact for extra ball rotation. This co-poly also has above average comfort for a poly-based string, making it an obvious choice for any player who wants a more arm-friendly control string. Intense bite and control from SIF technology. For baseliners with medium-to-fast swing speeds looking for a shaped string that grabs the ball for the ultimate spin experience.   Product Description   Yonex Polytour Rev 120 Tennis String Color: White Material: Polyester (Monofilament) Gauge: 17 (1.20mm) Length: 39 ft (12M)  Made in Japan   Product Technology 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 with unique pentagonal structure allows the string to move faster than conventional models, increasing spin.