The specialty of this cord end is that there is a prong in the middle which enables you to extend two strands of the thread or cord.
Double up the thread and insert the thread into the prong.
With the chain nose pliers, grasp the right side of the cord end and squeeze until it is flat against the cord.
Repeat for the left side of the cord end and make sure it is lying flat on top of the right side of the cord end.
Repeat for the second side of the cord. The loops on the cord end can now be used to attach jump rings or clasps.