Bicycle Jumbo ESP 50 Cards Blue (10 of each Square, Wavy Lines, Star, Circle and Cross) by Murphy's MagicOriginally developed and used at Duke University to test latent psychic abilities, ESP cards have been a mentalism staple for decades. Now, we're proud to bring this classic to the big stage, with a JUMBO version! Still printed by USPCC for top quality, and using the familiar Rider back design, these supersized cards are going to blow the socks off parlor and stage audiences! The set of 50 (10 of each symbol) allows for layering of most mentalism