It is a cube gimmick made of latex

with a nice metaphor

It is not a joke when we clearly state that using the contents of this book alone will give you all the material you will ever need to pursue a hugely successful professional career in the world of magic and entertainment

Following the instructions you chose one of the items on the opposite page

Mastering Q&A: Professional Secrets (Teleseminar) | Bob Cassidy - (Download) Hunt It is a cube gimmickThe Q&A routine has long been considered as the most powerful routine a mentalist can do and the "backbone of mentalism," according to Bob Cassidy . Now, Bob Cassidy , arguably the most influential mentalist of the last few decades, is sharing with the mentalism and magic community the professional secrets of performing Q&A, both classic and modern, that he featured in his landmark, exclusive, and highly acclaimed Q&A workshops! Learn the following