The Carbite D Series putters feature a variety of options of heel-toe weighted models to fit different putting preferences. These Carbite putters have tungsten weighting in the heel and toe, making them "polar weighted." This weight distribution stabilizes the face at impact to keep putts online, even if the ball is struck slightly off-center. The face of these putters has a "bronzemer" insert. The insert is a bronze-powder coated polymer that provides more friction to get the ball rolling while also giving a great, soft feel.