Cobra fly z combo graphite irons the cobra fly z combo graphite irons are ideal for players of all levels the clubs feature a speed channel face that helps minimize face thickness and increase flexion at impact to deliver increased distance through faster ball speeds on all shots the clubs also benefit from zone weighting that is designed to move weight from the crown and reposition it at the back for a low deep centre of gravity to help the ball fly high off the club face with ease the e