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The Callaway TRTL Prototype Putter is a putter from Callaway. Currently used by 1 professional golfer. Designed for precision on the greens.
| Player | Playing As | Shaft | Grip |
|---|---|---|---|
 MWL Min Woo Lee Putter |
The Callaway TRTL Prototype Putter is currently used by 1 professional golfer across PGA Tour, LIV Golf, DP World Tour, and LPGA Tour. This makes it one of the most notable putters on tour.