TaylorMade say they have improved the accuracy in the taylormade rocketballz irons thanks to it's Toe-Bar. Positioned in the upper toe, the Toe-Bar stiffens the toe of the club so the club can send the ball straight forward, when the clubface flexes. TaylorMade have also lowered the centre-of-gravity in order to strengthen the taylormade rbz irons loft and promote a more penetration flight. By thinning areas of the sole, top-line and back wall on the 3 to 6 irons, and repositioning that weight to the heel and back wall, the centre-of-gravity is moved lowered and more centered. TaylorMade RocketBallZ RBZ Irons is a progressive and dynamic set engineered to deliver effortless distance and a higher and straighter ball flight. This winning combination of distance and accuracy makes the new RBZ iron a game-changer and positions to be one of the greatest iron sets in company history. Fetures of taylormade rbz irons: 1,Thin, fast-flexing face and the COR up to the USGA limit, promotes high ball speed and long distance. 2,Re-engineered face structure with Toe-Bar located at the upper-toe area controls face-flexion to direct shots straightforward for improved accuracy. 3,New vibration and sound control system specially designed for thin-faced irons promotes exceptional feel and sound. 4,ATV soles in Attack, Sand and Lob wedges promote remarkable versatility allowing you to play six key scoring zone shots.