Kühnl & Hoyer This is a hand rest for trombones. Please check the photos for signs of use. We are unable to answer questions regarding compatible manufacturers, so please check with the importer. Please purchase with the understanding that we cannot accept returns or complaints for reasons such as the item not fitting. A bag and box are included, but the bag is not in good condition. Trombone Bass Trombone Hand Rest Hand Support Mouthpiece