【Fit】["Carbon"] fis5075 ["Slim"] ["Spin"] 5 (31.0mm) 's Japan Review

I was using a gear shaft and it broke off from the threaded part that secures it to the barrel when it was dropped.
It broke after about 9 hours of actual use, so I figured the stronger material was better suited for me, as I'm not a good shot.
The price was a bit steep, but I thought it was a good deal considering it comes with a spare in a 4-pack, so I bought the carbon one.
There is no sign of breakage and I can practice to my heart's content.

Finally!

The strongest, lightest, most powerful shaft that really won't break!
8 different lengths
Spin, Lock
3 types of shapes!
You can choose from a total of 48 patterns of shafts, which makes the display shelves weep!
And if you include colors... lol!
With such a wide variety, you are sure to find the right shaft for you!
Try it out!

They are sturdy!
But it loosens easily. Very.