Ping K15 Driver 10.5* (Graphite TFC 149, REGULAR) Golf Club K-15 Ping K15, Titanium 460cc Ultra-thin Crown allows weight to be re-distributed to an external weight pad to optimize center of gravity and create a high moment of inertia Promotes natural clubhead rotation by concentrating approximately 10% of the head mass towards the heel Larger surface area is highly forgiving on off-center hits and generates faster ball speeds for added distance Straight Flight Technology provides substantial heel weighting to help square the face for exceptionally straight drives tee shot after tee shot