【Fit】GEAR Shaft fis6081 ["Slim"] ["Spin"] 1 (13.0mm) White 's Japan Review

I'm using a slim #7 and it hasn't broken yet after 2 months of use.

I have used normal type No. 4 and slim type No. 5, but I was surprised that they have not broken yet, since they once broke after only a few hours of use.
Maybe the clear color is more prone to breakage?

I think it is possible to buy a carbon shaft from the beginning because it is a shaft that is easy to break.

Also, and I think this is just me, but you should make sure when you buy a shaft that it is a lock or spin shaft (I once bought a lock shaft by mistake when I bought shafts in bulk).

It is a shaft exclusively for FIT flights, and while it has a simple shape that is attached by inserting a dedicated flight, the locking type holds the flight in place, while the spinning type rotates the flight to reduce bouncing due to darts interfering with each other.
I preferred the clear coloring with lame dyeing, but I decided to use the GEAR series because the running cost of a relatively expensive FIT is too high to have many broken darts. Although there were times when they were bounced off the dartboard, I would break only one dart per month if I was unlucky, so I keep using them.
There are three types of shaft shapes, but I didn't feel the weight change that much, so I think you should choose Slim for its clean look and good hooking when you grip the shaft lightly, Hybrid if you grip the shaft lightly and dislike hooking and want lightness, and Normal if you want to emphasize strength. If you want to focus on strength, I think you should choose the normal type.
The spin type shaft rattles slightly when the flight is attached, so those who do not need it to rotate should choose the lock type.
The lengths are (1) 13mm, (2) 18mm, (3) 24mm, (4) 28.5mm, (5) 31mm, (6) 35mm, (7) 38.5mm, and (8) 42.5mm, so you can choose according to your preference.