The performer shows a jumbo card that has 1 black dot on one side, and 4 black dots on the other. When the card is shown again, strangely it has 3 dots on one side and 6 on the other. The card is shown a few more times, and each time the number of dots on its sides changes. At the end the magician explains to the audience how the trick works, but as a surprise finish 8 black dots suddenly appear from nowhere filling the card completely!
Thanks to the clear photos in the instructions, the trick is very easy to learn.
The card measures 24cm x 16cm and the dots have a diameter of 3cm x 7cm. The effect is consequently well visible even at a distance.