With the highest moment of inertia of any PING putters, the Udrainium Series consists of five precision-milled DocTM models, each with crisp, symmetrical lines for improved alignment, and very low centers of gravity (CGs) for reduced skidding and a truer roll.

The over-sized putter
are fully machined from high-grade aluminum, creating precision lines and weight placement that expands perimeter weighting to new levels. Their semicircle shape positions the majority of weight on the extreme perimeter and far away from the center of gravity to create an extremely high moment of inertia. Simply put, high MOI helps get the ball rolling sooner and straighter for more consistent putts.

The thick top line
and perpendicular cavity bar help golfers square the putter to the intended line, and the electroless nickel-plated finish creates a rich appearance.