PGA Certified Mana Series 2 by Mana Series that can experience the mechanism of the Hinge Cock, a joint development and consecutive system. The shot quality of the Hinge Cock, the rudder of the swing, the "Hinge Cock" will help you improve the trajectorys direction and distance. "Mana-hinge" guides correct "hinge cook" movement. The best results include the grip that can be cocked correctly on the right hand, the correct top position that is formed from it, and the hinge will keep the true tame on impact. Simply attach the "mana hinge" to experience the mechanism of the ball to grab without excessive face burns.