This is a support helper for the table in my Adria motorhome. The original support was broken by a previous owner so the table was freely sliding on the wall support (not good when moving!). I printed twice and screwed the parts in empty space under the table.
Now it is as good as new.
Supports are needed for the teeth, I printed upside-down (as in the second photo).
Infill should not be very high as you need this part to break off instead of the wall support when it is abused! I carry a spare just in case.