Eleven Mallet Putter The XXIO Mallet Putter is a premium putter offering that combines an extremely soft feel and greater stability on the greens for a better putting experience. Precision Milled Milled from a single billet of forged 303 stainless steel, XXIO putters offer a stable putting platform with premium feel. High Density Tungsten Nickel Weights Tungsten weights in the heel and toe expand MOI for more stability and consistency on the green. Product Specifications Length (") Loft (") Lie