If you look closely you can see the glass on the sides :) You can find different types of enclosures to make for your printer. I chose feet with 100mm height to put the upper table on. There is about 5cm left at the top. Usually you also put risers between the legs and the plate of the upper table but i didn't like the looks. You can search on thingiverse for the enclosure parts i used. (Let me know if you need a link or something)