I was having pain in my hand while playing my tenor recorder and was pointed to using a thumb rest. When I bought my Mollenhauer tenor I wanted something as beautiful as it was. The adjustable part of this rest made it easier for me to have it placed and ******* in to the instrument (I took it to a local woodwind repairman) and be able to have the fine adjustment needed to provide complete comfort. I will be buying this again when I get more wooden instruments. It's so beautiful!