taa0011 's Japan Review

Should be on all shafts for now! Japanese shafts rarely come loose, but this will hold them in place stiffly. Recommended! Also, it is very difficult to put it on without a bamboo shoot tool, so buy this at first.

It is very easy to put on because of the metal fittings.
It is very convenient to have one.

This is a necessity when using aluminum shafts.
It prevents loosening so you can throw without stress.

The mounting brackets (a.k.a. bamboo shoots) are very useful!