Momentus Swing Trainer | Golf Monthly

Guilty, bought one maybe 10 years ago, did stick at the recommended exercises but I can't say if it helped at all, the moulded grip at least gets your mitts in the correct place.
Sold it on fleabay less than a year later.
As a warm up aid its not good as its too short to swish and stay balanced, speed stik is a much more useful item for that imo.