Cobra king f7 plus driver this cobra king f7 plus driver has a multi material textreme crown which has been crafted with carbon fibre which means that the crown is 20 lighter allowing for more weight to be redistributed lower and deeper into the club head for a lower centre of gravity which yields extreme distance and forgiveness the forged 8 11 titanium e9 face is a variable thickness structure that is designed to be lighter and thin whilst increasing the sweet spot for increased ball spe