Super Ball & Tube

The magician shows some elegant objects: a brass tube and a solid steel sphere. He places the sphere on the tube which inside is smaller than the diameter of the sphere. After a moment of suspense, the sphere magically sinks into the tube... and then pops out again! Then, the magician hands the objects to a spectator, to let him try the magic, but he will fail!

• The tube is 3.5 cm high and has a diameter of 1.8 cm.
• Easy to do, pocket-sized (to always carry with you) and impactful for any audience.
• At the end, everything can be handed our for examination to the spectators..