What sets the Mezza Monza apart is the size of its head. With a face-length 15 percent smaller from heel to toe than the original Monza, the Mezza Monza is a mid-sized mallet (Mezza means "middle" in Italian) designed to appeal to players who prefer a more compact head-shape. Each Monza putterhead is forged out of lightweight, 6061 aluminium, a material that makes it possible for Rossa engineers to save an exceptional amount of weight, especially in the front of the head. The CGB Pipes, positioned perpendicular to the clubface, are made of Titallium and precision-filled with tungsten. Titallium is a super-strong alloy comprised of seven lightweight metals that's lighter-yet-stronger than the typical steel used to make putterheads. Monza's CGB Pipes serve a dual purpose: 1) Their length and weighting allow TaylorMade engineers to shift the significant weight that's saved by virtue of using 6061 aluminium from the front of the putterhead to the rear, which moves the center of gravity deep back in the head. This exceedingly deep CG position improves launch conditions considerably by increasing the launch angle and producing an earlier forward roll, resulting in a smoother, almost bounceless roll off the face. 2) The CGB Pipes, which are separated by a vivid, white sight-line, also serve as a powerful optical aid that makes aiming easier, promoting increased accuracy. Rossa's lightweight Titallium insert technology, featured in all Rossa putters, allows Rossa engineers to save weight in the putterface and redistribute that weight to strategic areas in the putterhead, increasing the moment of inertia (MOI) for added forgiveness on mis-hits. Plus, Rossa's Titallium insert technology provides a soft-yet-crisp feel at impact that is tremendously satisfying.