The YONEX Poly Tour Fire 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. A greater snapback produces a powerful spin. SIF Technology allows the string to move faster than conventional models, increasing spin.

Construction: Monofilament Polyester with high polymer polyester

Color: Black

Gauge: 16L (1.25 mm)

Length: 40 ft

Need help selecting a string? Check out our Choosing The Right Tennis String Guide for more assistance.