Sad to say this but ... I didn't make it, the guys in the pro shop at my home course had it made. Not sure exactly who made it but, it is something that could be easily built with materials from any local lumber yard. I have used it several times though and it does work well. It keeps your swing in plane throughout. It's great for embedding muscle memory for your swing since you pretty much swing exactly the same every time using it. Glad you guys like it and maybe some of you can build one too to take advantage of this training aid.