I bought my second large rokkaku the other day and this one was second-hand and in questionable state for not a lot of money.
It was offered as part of a set of rokkakus that were 'obsolete'.
Here you see it next to an 78" Premier rokkaku and it is about the same size.
There is no brand label or anything on this one and the bridle made of guy rope, as seen on this picture, was horrible.
The spreaders, Exel RCF 8 & 10, are way more sturdy then the ones by Premier and can handle more load/wind.
When in fly modus the light-weight fabric becomes real tight like the skin of a drum.
The all-over quality is much, much better.
I made a new extended bridle for it based on the Bridle Guide and the bridle of the Premier rokkaku and did some small repairs.
This baby flies like a maniac and I love it.