【Shell Lock】fla1021 's Japan Review

The other company's shafts were too tight to fit in Target's PRO GRIP.
WINMAU's prismatic force and nylon shafts are a little tighter, but if you push them in, they won't come off.
In a way, I think it is just right.
Lalo, Ultima, Harrods, and Mission usually fit.

It is transparent, so you can use it without worrying about the color.

They open at exactly 90 degrees...?
There is a groove dug for the flight to get into, but I don't feel like it is hooked at all, and I personally don't feel it works at all.