A rope and four ends

Magic with little luggage and great effect. A rope usually has the right and the left end and as the name suggests, in the middle of a center. By elevating one end in your hand you turn the rope in a rope with one end and two centers. Unplug the set in hand end down, but the second center remains in the rope to turn a moment later in a third end. But since there are no ropes with three ends, insert the third end back up in your hand. Behold, a rope with four ends has emerged. But inasmuch as it is a rope with four ends, you do it all again reversed and the rope again has two ends and a middle. Delivered with a proven presentation, rope diameter 8mm. Magic Items are non-returnable.