Product Description Go Bigger; Get Better... Make More Putts- Oversized heads increase stability at impact, keeping you more on line & into the hole more often- Vertical, Deep-milled insert allows for better ball gripping for enhanced roll, sound, & feel Find the Hole- Raised high contrast sight line makes it easier to aim- Skin-milled surfaces offer the ultimate in high-quality finishing The new OS & OS CB putters, a larger, high moment of inertial (MOI) design exhibiting an expanded sweet spot & enhanced alignment system. The latest in putter stability innovation from Taylor Made Golf comes in both OS (Over Size) & CB (Counter Balance) designations. The OS models feature slightly larger head sizes than traditional putters while also delivering higher moment of inertia. For players seeking even more stability, the OS CB models are even larger in size, deliver higher moment of inertia & feature counterbalance technology to stabilize & smooth the putting stroke.