I bought this for the wall mirror I bought from this store. Because of the shape of the tip, it is not possible to reuse it once it has been used. At first, I didn't understand this from the diagram alone, and I inserted a clothespin into the hook hole and tried to stick it into the wall as it was, but the pin opened and wouldn't stick, and even if I tried to put it back in, it was too hard to do so. I couldn't use one of them, and I had to buy another one... I would like a little more explanation. And, once you pull it out, you can't reuse it, so I recommend that you carefully consider where you want to put it before you put the pin in. I think it's a great product.