The new King F9 Speedback Irons from Cobra are finally here. They are packed full of technological advances that can only help your golf game. Their Speedback technology aims to increase clubhead speed, launch the ball higher, hit it further but at the same time give forgiveness for an off centre hit. All of this is done by lowering and moving the centre of gravity (CG) deeper into the head. A belt of steel wraps around the back of the iron and this is positioned just above the contact area on the sole which allows the CG to be moved.