These bobbins are companions to the Kumihimo 4.25 DD disk for making hangtie braids.  They come in a set of 8 for making 8-strand braids.  
 
These bobbins offer cord management by securing loose ends of kumihimo braids.  The flexible locking feature prevents thread from unraveling as you craft and work.  These small bobbins help keep cords from getting tangled or knotted.