Putters come in a variety of head shapes and have a very low loft and often a short shaft. They are used to play the ball on the green, but may occasionally be useful for playing from bunkers or for some approach Putters may be constructed of varied materials, or combinations of materials, and are engineered with different design features to ensure consistent, square alignment, distance control, feel and true, forward roll. Early putters were constructed from forged steel, while current-day putters are cast, forged and assembled from advanced, high performance steel, titanium, graphite and various plastic materials. Advancements in putter head and putter shaft material technology over the years have allowed for improved putter designs. Today’s putter manufacturer’s produce and sell putters in varied lofts, shapes, sizes, weights and shaft types and lengths (Standard, Belly, Long) to optimize putter performance on the green. Some of the more popular putter brands include TaylorMade Rosa putters, Titleist Scotty Cameron putters, Callaway Odyssey putters, Cobra putters, Nike putters, Mizuno Bettinardi putters, and Ben Hogan putters.