• Face Insert Technology
  • The Science of Putting
  • Bob Engman Master Designer
  • Belly & Long Putters
  • Putting Tips

Face Insert Technology

There's no mistaking it. Tests show even blindfolded golfers can truly feel the difference between a STX (pronounced stix) putter and any other. Yes, technology can make you a better putter. STX's soft inserts, developed with the help of DuPont chemists, have characteristics that allow you to roll more putts into the hole. Our elastomeric inserts cradle the ball during contact, resulting in more dwell time and less skidding on the green. STX takes face insert technology to a new level with its variety of inserts that elicit a remarkable feel under any condition for greater accuracy, consistency and confidence.

Face Insert Technology Golf Clubs

STX's color coded face inserts, which vary in softness and resiliency, are literally changing the face of putting.

Black Face
  • Softest insert material
  • Softest legal insert
  • Longest dwell time — provides least amount of skidding and truest roll
  • Highest resilience rate
  • Stimp meter 10+
Red Face
  • Medium insert material
  • Softer than most polymer inserts
  • Medium dwell time — provides true roll and control
  • Mid resilience rate
  • Stimp meter 9-10
Green Face
  • Firmest insert material
  • Closest to non-polymer inserts
  • Shortest dwell time — provides precise feedback for superb control
  • Lowest resilience rate for the firmest feel
  • Stimp meter 7-8