【L-shaft】L Shaft fls0012 ["Straight"] [] 190 (19.0mm) White 's Japan Review

Compared to the conventional L-shaft, it is much easier to insert the flight. However, if the flight is not firmly inserted all the way to the root, it will easily come off.

I tried it out.
It is not bad as a product, but it takes a lot of force to push the flight all the way in.
And the flight sometimes fell out when I was flying the dart.
The current Shaft Silent is much easier to use.