We collect mugs during our travels or life events so we have quite a few of them. We have tried several different ways to display them, but they end up not supporting enough weight or the pegs are too close to one another to support anything other than a traditional mug. Decided to try these and we are so happy with the result. We have small mugs, standard size and some pretty huge ones, some made from a light metal or plastic and others a heavy ceramic. These racks hold them all with NO issues. The racks were easy for my husband to assemble and install and we tested them for any movement and they are solid, they did not budge at all in any direction away from the wall. They are now holding 15 mugs each and were confident they could both be filled up and no issues would occur. Would buy these again in a heartbeat!