Description: 【Astonishing Magic Effect】: Audience drops a piece of paper into the box. When opened, the paper magically transforms into a pre prepared message, creating an unforgettable moment of wonder 【No Electronics Required】: Magic Mind Box Ingeniously designed with mechanical principles, no electronics or complex devices needed. Safe and reliable for all ages 【Easy to Use】: Great for both beginners and professional magicians. it's easy to master and delivers stunning results 【Highly Concealed Design】: Looks just like an ordinary paper box with no visible clues. The secret mechanism is completely hidden, ensuring spectator remain unsuspecting throughout your performance 【Versatile Performance Tool】: Magic Trick Box is Ideal for stage magic, parties, gatherings, or interactive shows Specification: Material: Paper Size Chart: 20cmx13.5cmx13.5cm/7.87inchx5.31inchx5.31inch Package Includes: 1x Magic Mind Box Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.