Callaway O-Works Black Superstroke 2.0 #1 PutterThe O-Works #1 Black Putter is a rounded heel-toe weighted blade with a crank-neck hosel, Microhinge Face Insert, sole weights, full-shaft offset and a black finish.Unmatched Roll with our New Microhinge Face InsertThis new technology will change the way people look at roll off the putter face forever. Our Microhinge Insert Technology provides incredible gains in topspin and roll at impact regardless of your stroke. The stainless steel Microhinge plate is co-molded into our Thermoplastic Elastomer Feel Layer, providing great feel and the new geometry of the hinges and urethane together help to get the ball into a better roll at impact.All-Black Finish Driven By Tour FeedbackSome players like a clean, simple look at address, and this finish has been a tremendously popular choice on Tour for years. When a number of our Tour players told us that they wanted an all-black putter with our Microhinge insert we listened, and then we made an unbelievable putter.Tour Proven Shapes & New Innovative MalletsThese are some of our most prolific models that have dominated Tour events and major championships for years. As the #1 putter across the major tours, we’re constantly working to develop and tweak shapes for ultimate performance.* And with many of our players moving into mallets this year, we’re introducing innovative new designs like our #3, #2 Mallet with a center shaft, and a short slant neck hosel on our popular #7 head.