No this isnt a trick that is coming out of a hidden hole in the table. It is assembling this rod mechanically from pieces in the main body. Its kinda cool and a little surreal, I like it.

https://www.youtube.com/watch?v=OiPU9BGQL2M

https://hackaday.com/2020/12/29/the-black-magic-of-a-disappearing-linear-actuator/