【Fit Flight Air】fif3045 Shape Red (Pack of 3) 's Japan Review

I used it hard with normal spin 3 on my first AIR and the softness is nice.
But on the second day of practicing for about 2 hours a day, the shaft insert side ripped about 5mm.
I thought it would last for a week since it was a spin shaft and it didn't fall on the floor, but I'm disappointed.
The durability of both the normal and the AIR is poor.
The foldable or L type is definitely more durable.