The Luxilon Alu Power Vibe tennis string grants the same advantages of a monofilament string from this range exceptional power and great durability, yet with the blended silicone dampener material mutes vibrations efficiently leaving each shot as clean and responsive as possible. Its a great performance string aimed at a control-oriented style on the court, and players who seek superior comfort without hindering power potential. This 17 (1.25mm) gauge string is supplied as a 200m reel.