Rife Cayman Putter 'Roll Groove' technology uses precisely milled grooves on the face of the Rife Cayman putter. At impact the narrow space between the grooves grips and carries the ball forward slightly off the putting surface. Because there is only 1 degree of loft, the ball starts its forward rotation while in the air allowing it to continue rolling with out skidding. Eliminating skid reduces the effects of grass grain for a more consistent a turer roll . RollGroove Technology dramatically reduces the effects of grain by getting the ball rolling on top of the grass quicker with true forward roll, which decreases the friction with the grass. The Rife Cayman putter has been 100% precision milled from a solid block of soft 304 Stainless Steel for absolute accuracy and feel. A long and elegant slant hosel helps to keep your hands in front of the ball for an improved stroke and roll. Please note that the headcover is included free.