Apparently, in the Netherlands, women are encouraged to give birth the natural way, at home, and with the help of midwives (who's trained and will get you to the hospital if there is a medical reason).
And that thing to the left is the standard equipment: a birthing stool. (But this one is special.) Amazone of Farqmazone blog explains:
These days most midwives carry one standard with them at deliveries. Sitting on it the birthing woman can make good use of gravity to help getting the child out. It also helps a little preventing a disaster zone down there…
But this is not a regular birthing stool.
The in-laws used to have a milk farm, so when the use of birthing stools came in use, a home made one was soon provided for the births of the third and fourth child.
Kneeling on it helps bearing the labour contractions better before, and after the birth, catching the placenta.