Note from Martin:

The uses are endless, anything from a simple method of forcing a playing card through to an elaborate ambitious card routine, this pack can do it all. Whether you're a beginner or experienced magician, the Svengali pack (also known as the Long & Short cards) is one of the most useful packs you'll ever purchase. This pack comes with a written instruction for 20 tricks, but that's just a touch of what it can do. There's books & video dedicated to its uses and this is a quality version, perfectly cut in Bicycle Playing Cards with a choice of Red or Blue Backs.