This is a special pack of cards, which allows you to perform fancy card flourishes, with much greater ease and far less practice, than if they were performed with a normal pack. It allows you to give an
impression of much greater skill than you really possess.
Some performers prefer to present this in a comedy vein, and some as a demonstration of skills they do not really have. Either way, a little effort with the presentation will enable you to get much more than your money’s worth from this easy to use prop.