This support will work on guitars between 50mm and 82mm wide.
For players using narrower bodied instrument - such as transition instruments, hollow bodied electrics, and ukuleles, this model is well suited to match your needs. The support retains all the features of the standard GS3.
I purchased a fourth generation Woodside guitar rest for one of my French Polished guitars. It worked so well I bought a second one for another of my guitars. However it was not adjustable enough to fit my French Polished Flamenco guitar so I bought the new thin body Woodside guitar rest from Xguitars. It works great.