We have a lot of 4 vintage wooden dowels.  They had been on a ?chair so the ends on all of them are slightly narrower than the centers - (about 1/2" and the center portion is about 5/8").  The lengths are as follow:  The longest one is about 19 5/8" - 1 of the narrow ends is fractured off on this one leaving only about 1/8" of the narrow portion.  2 are about 15 1/4" and the shortest one is about 13 3/4".  These have a vintage patina - they were cleaned with a rag - a chemical cleaner may get them a bit cleaner.
I will ship internationally, please contact me with your country for a shipping quote.