Mizunos new M Craft OMOI putter brings heavyweight stability to the forged putter line. The OMOI putters feature the fundamental properties of the original M Craft line - forged 1025 carbon steel and CNC milling - with a new, heavier head weight that increases MOI and stability. The heavier head is built with dual weight ports, along with additional weights that help fine tune swing weight and MOI. To balance out the heavier weights, the OMOI putters use lightweight grip and shaft to shift the CG and control face rotation through the stroke.