Magicians can conjure up coke, vases, pigeons, fruits and other things from books, and the thickness of the items is 4-6 times that of the books. All items are not compressed items such as sponges, but daily necessities or small animals. The door is cleverly designed, so the actor doesn't need to hide anything on him or hang a bag, and it is completely hidden in the book. It can be mastered simply, without technique. You can perform suffocating magic in 2 minutes' practice.