Babolat Pro Hurricane Tour 17g Strings improve on the original Hurricane in almost every way. It plays firmer and with more control than the original, and improves in the durability department. Hurricane Tour has an octagonal profile to help grab the ball to generate top spin. Players who prefer a firmer feeling string bed with ample amounts of control and spin potential, are perfect candidates for Hurricane Tour. Hurricane Tour was the pre-cursor to RPM Blast, and is used on tour by Ryan Harrison and Monica Puig Construction: Extruded co-polyester monofilament Color: Yellow Gauge: 17 g / 1.25mm Length: 40 ft   Features: -Crisp Firm Feel -Octagonal Profile for Spin -Firmer update to Pro Hurricane -Improved Durability -Solid Control on Big Swings