I've always been clumsy and not very good at DIY, so I was hesitating for a long time, but I really wanted a shelf, so I took the plunge and bought it. There were three extra pins for plasterboard included, but when I opened the package, one of them had broken inside. When I actually tried to install it, another one bent and became unusable, so I was in a rush and couldn't afford to make any more mistakes, but I managed to install it somehow. However, I used a coin to push the pin in, referring to everyone's comments, but the pin just wouldn't move any further, so in the end I had to use a rubber mallet to bang it in! , so I think you need to be careful in environments where you need to be considerate of your neighbors. It was quite a challenge, but the finished product was satisfactory, so I'm considering adding more shelves in other places too.