I believe this is a model 5 baritone, 4* tip. West German made, I believe that these were all hard rubber, hence the title, but I am.open to different opinions on composition as I have a difficult time telling the difference between perfect hard rubber and plastic pieces. I am not a player or expert, so if I am wrong just message me. If you have any questions or need more pics let me know. It measures 5.25 in long. Box lid is torn at two corners.