This is a high-speed dubbing twister with a large ball bearing. This

is a professional tying tool that dramatically improves the efficiency of the time-consuming dubbing loop method.
By using the center core clip, it is also possible to twist multiple materials at the same time.
The twisted material can be easily wrapped around the hook by rotating a rotary vice such as the CFT-9000.

Use it to twist the material clamped in the dubbing loop.
If you twist the thread too much while it is under tension, it may cause the thread to break.
If you wrap the thread horizontally around the base of the dubbing loop, the material will not easily fall off when you close the dubbing loop.
Be careful not to apply too much tension when closing the dubbing loop, as this may damage the hook.