Magic of two rubber strings

Step 1:
Get 2 rubber strings with the same color (different color in the picture for distinction). Focus on only the red rubber string on the right hand, because the trick is on that. Move your right hand to pull the rubber string to a proper distance.








Step 2:
While pulling, hold the red rubber string with your index finger and middle finger and take you index finger out of the loop of the string.









Step 3:Keep holding the rubber string with your index finger and middle finger together. Move your index finger into another loop of the rubber string.











Step 4:
Make sure you are successful to insert your index finger into another loop. At the same time, move your right hand back to the original position and release the part of the string holding by your two fingers.








Step 5:
Act as the rubber strings were still crossing each other. Give a little blow to the strings and move your hands away from each other.