I bought them because one linker broke and was appalled buy the price. Ever since, I have been very frustrate that the adhesive which comes with the tiles doesn't keep them in place but dries out so that they fall from the wall. I have been looking for an alternative but no luck so far. So in the meantime, the tiles fwell off the wall another three times, each time breaking one or more linkers, so that I could at least use all the overpriced linkers after all.