Review on ⛳ Bradley Hughes' Patented DownUnder Board 2.0 Tour Edition: Enhance your Golf Swing with this PGA Tour-endorsed Training Aid and Improve Golf Performance by Adam French

I've used it on the training ground and can see how it benefits you if you use it a lot for core and footwork. Unfortunately it doesn't stretch far enough for my riding position and it was hard to justify keeping it for my irons so I returned it. You can recreate this with your own hands, but it's very easy to just pop it in your pocket and get started. For what it is and where it's made (China), it's about $25-$30 more than it probably should be, but that's how people buy it.