Hi, I'm so new at this that I don't understand the way some shelves are fixed in the fitted wardrobes in the bedroom of my new house. There is nothing in view except two "screws" (see image) near the sides (underneath for some shelves, above for others). Except these are not screws: they can rotate half turn only. Turning clockwise tightens the connection, turning anti-clockwise loosens it but still the shelf cannot be removed. There is nothing visible from the outside, how on earth does this fitting system work, how do I remove a shelf??
View media item 23671
View media item 23671