No clue, I have 3 of them, I got them at the local flea market. 2 for 5 bucks a piece and the 3rd was given to me by a flea market vendor, he said I needed it more than him.

All are adjustable height quad canes, so if you have a flea market in the area? It might be less of a hassle to look there?

O/T, I thought the area around Knoxville was beautiful and considered moving there for a time.