Head Sonic Pro 17g Tennis String Set - Black gamma It also incorporates a Comfort

It also incorporates a Comfort Grip for less vibration and more comfort and a Composite Hitting Surface for increased power

which enhance energy efficiency and provide

MSV Focus-Hex Plus 38 is a co-polyester monofilament string which has been designed to be 38% softer than the original Focus-Hex

Length: 330 feet

Outer: Special Braided High Polymer Nylon Fiber

Head Sonic Pro 17g Tennis String Set - Black gamma It also incorporates a ComfortMade from uniquely refined co polymer polyester with a soft molecular construction, the new Head Sonic Prostring offers superior control and touch for extra pop and spin. This exceptionally durable string offers excellent response and playability that meet the demands of todays best players. Sonic Pro is one of the softest polyester strings on the market. Gauge: 17 1. 25 mm Length: 40' 12. 2 m Composition: Monofliament Copolymer Polyester Color: Black