Additional table mounting for Original Prusa i3 MK3 ENCLOSURE -Ikea Lack table

Building the enclosure "Original Prusa i3 MK3 ENCLOSURE -Ikea Lack table - Prusa Research by cisardom Apr 16, 2018" with three tables you have to mount the middle one to the lower one.
This is my solution. :-)

I like them and because I got a lot from you guys I would like to give a bit back.
My first "real" usefull part for the printer. :-)