The Si5 Mallet is a solid stainless steel mallet with a new milled aluminum insert for great feel and roll. The Si5 is a very pleasing mallet shape with sleek lines, instilling a ton of confidence. Great option for golfers who typically enjoy larger mallets. The Black PowderCoat finish helps to reduce glare and enhance overall design. Alignment benefits of RifleScope Technology (RST). Straight shaft. Toe hang 15 degrees. Design and functionality is completely unique to SeeMore, with majority of weight behind center making it very easy to properly release the putter head. Cast 303 stainless steel now featuring milled face. All SeeMore Putter Models Have SeeMore's Patented RifleScope Technology (RST) Alignment System, For A True Reference Point For Perfect Alignment And Set Up On Every Putt. SeeMore was the winning putter brand of the 2015 OPEN Championship at St. Andrews (Zach Johnson), in one of the greatest clutch putting performances in OPEN History. SeeMore putters have won 3 MAJOR Championships, also including the 2007 Masters (Zach Johnson) and the 1999 US Open (Payne Stewart).