They sell different lengths and blade qualities. Some are deliberately low quality utility/work knives for hacking shrubbery. There are high end ceremonial versions intended strictly for viewing.
I’ve owned a number of them over the years, from huge, to normal, to small, and don’t have any idea where any of them disappeared to, except for one that I remember giving away.
They are interesting looking, but not the best knife for most things, and too heavy.