Refiner Golf - Hinged Golf Swing Trainer

What they say:

"Our HINGED training clubs are very unique and are highly respected in the golf industry as being the most effective golf swing aid on the market. You may have seen our commercials on the Golf Channel.

Refiner Golf has been in business since 1992 and take great pride in customer satisfaction.

Check out our PATENTED two-way adjustable-hinged five irons, drivers and putters"