Imagine your practice clubs would talk to you whenever your swing will be wrong.
The putter "Knickputter" critices your putt!
The iron 5 or 7 "Snakeline" critices your swing!
And in the same way patient and consistent a pro would teach you. Without any word, but with smart technic: If your putt- or swing motion will be unbalanced, the hinge will just break!
How it works you will get on this website!