Wilson Revolve 16 Tennis String Reel - White Wilson's Revolve offers exceptional power while maintaining comfort and spin-enhancing properties. Featuring a tri-polymer construction with a low-friction additive, this string is a top choice for players with long, fast strokes seeking a harmony between power and spin. These strings offer maximum snap back, you you can generate relentless spin that jumps up on each shot. The 16 gauge string is slightly thicker than the 17 gauge, making it a more durable option.