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Quantity
1
Description
The Putting Trainer That Fails If You Fail to Swing. Most training aids just give you visual lines to look at. String Theory gives you physical consequences. Built with a patented, flexible weighted-string shaft, you cannot force or manipula...
Reviews
4.7
11 ratings
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Great gift for the golf lover in your family! My dad has been using this weekly and is rethinking his approach to putting.
Early returns are fantastic and his short game is only improving.
C
Chari · June 29, 2026
Great for dialing in tempo and feel.
N
Nick · July 27, 2026
Great trainer. Helps prevent you dragging the handle and releasing putter head