You show a red, blue and green rope with knots on them and a yellow rope with no knots on it. Magically the knots jump from the red, blue and green rope onto the yellow rope. When the knots are opened they are found to have merged into the yellow rope. The ropes can be handed out for inspection at all times. Very easy to do can be done right out of the box.
Each rope measures about 21" in length and is made of very high quality, bright colored, soft crotchet material.