Head Hawk 17 Tennis String : 281103 Tennis string is available in-store only. Please call our tennis department during regular store hours if you have any questions. 425-869-7669. Thank you. - Sturtevants eCommerce Department Available Gauges : 16, 17, 18 Available Colors : Grey (Silver) or White Set or Reel? : Sold in Sets LENGTH: 12 m / 40ft GAUGE: 1.20 mm / 18 g, 1.25 mm / 17 g, 1.30 mm / 16 g When the perfect balance of control and explosive power comes together in a string, we call it HAWK. This monofilament string 's inner crystalline core, which influences control, and the outer molecular chains, which influence power, are perfectly balanced thanks to the innovative Crystal Core Technology, a unique manufacturing process. Highly durable and with high spin potential, these strings are the perfect weapon for the high-level Tour and tournament player. After all, with great power comes great responsibility. Head Hawk 17 Tennis String | Silver | Christy Sports