The Rife Deep Blue putter is named after the positioning of the weight deep in the rear corner to give the Deep Blue maximum stability and an MOI of over 6,000. To achieve this positioning Rife have used ultra light 6061 aluminium to create insert in the face of the Deep Blue which delivers a solid reel and sound with hollow side rails allowing the thickest mass of stainless steel to be positioned in the two rear corners. The Rife Deep Blue offers extreme stability and a sophisticated look with 3 solid sight lines extending the length of the putter and the Rife Deep Blue also incorporates the companies unique RollGroove™ face technology and Lie-Aline custom fitting technology.