PRIME DRIVER: Super-TIX PLUS Titanium alloy face is strong and lightweight for a thin and fast face Flat Cup Face expands the high COR region for increased ball speed and distance Star Frame rib structure in the sole adds strength and saves weight for a more optimal launch off the tee Rebound frame with a pattern of stiff and flexible zones within the head increases ball speed Draw Bias Bulge Design face curvature is slightly closed at heel and open near toe for a desirable right-to-left shot shape Weight Plus Counterbalancing Technology: Brass and rubber weight in the shaft, positioned behind your hands as you grip the club Helps push the clubhead through backswing for a more consistent swing position At beginning of downswing, the weight brings your hands into position, keeping your arms closer to your body for a squarer face at impact Incredibly lightweight for improved distance and overall performance with moderate swing speed SHAFT: XXIO Prime SP-1100 Shaft Made with TORAYCA T1100G carbon fiber and NANOALLOY resin Extremely lightweight to produce more swing speed and distance with its smooth, easy-to-swing profile Softer tip section makes it easier to close the club face and strike the ball square GRIP: XXIO Prime Weight Plus Grip Speed/Distance