It is the strongest thread in the market used for Wonder ATR.
The reel used for Wonder ATR lets you extract thread up to 10 meters.
The strong thread can also be used alone for levitation and thread tricks.
The thread has been specially made to endure the power of Wonder ATR.
You cannot get it anywhere else.
It is a single thread 18 meters long, so you will not have any trouble unraveling it!
Cut and use it to a length of your preference.