[HOW TO USE]
1. Screw system, easy way, easy angle adjustment.
2. Providing the silicone tube - It can be used without tube, but depending on the player's hand shape.
3. It can be mounted on most instruments. however, if tubing thickness is different, you can use the O-ring on the mount point. (O-ring includes the product)

[Item Feature]
Curtis thumb rest while supporting the weight of the instrument, hand and wrist, reduces tension and stress on the arm and not to put excessive pressure on the body while playing trombone