Features Suspended Face Technology (SFT) -dual-density insert that helps disperse weight to the extremities of the face for higher MOI and uses ribs of material embedded in a softer insert to deliver responsive feedback at impact. Available in three other models - the NCX-RAY Tau Blade (with Plumber's Neck), the NCX-RAY Sigma (Geometry Mallet) and the NCX-RAY Beta (Small Mallet).