Knotted Necklace is a 'knots off necklace' effect. Magician shows a necklace and makes 3 knots, then he takes the 3 knots off the necklace magically. The 3 knots become real! Then he puts the knots back onto the necklace, the knots melt back onto the necklace one by one again.

Advantages:

This effect is very novelty and innovative.
Convenient to do. It can be performed in almost any situation.
Easy to do.
The effect can happen in the spectator's hand.