【Fit】["Carbon"] fis6721 ["Normal"] ["Spin"] 1 (13.0mm) White 's Japan Review

I have had a size 2 for a while now, so quality is not a problem.
I don't remember any other manufacturer having an all-white carbon shaft, so it is very useful.

I bought a size 1 about a month ago. The other day, two of them broke on the flight side in a row.
I am not sure if I should repeat the purchase, because the balance of the flight was good.

When I was just starting out, I took the plunge and bought it for its durability.
Of course it was hard to break, but even though it was a spin type, it did not turn at all compared to the plastic.
It was almost in a state of lock.
I think it is no problem for those who like to lock, but I think those who use spin type need to be careful. It would be nice if you could try the actual product once before purchasing.
I ended up going back to plastic because it made my flight unstable.