Here are a few tubes I just finished.
These are my 2 3/4" short tubes. African Blackwood, Bloodwood, Bocote & Zebrawood.
By request I made a couple of larger diameter tubes.
They are 3 1/4" long with a .875 i.d. They are figured Bubinga & Zebrawood.
This is one of my long Bocote tubes it is 3 1/2" long.