If you have a frame from our Premiere Collection, these are all carefully crafted as a 4 piece set so all the magnets and patterns are specifically built and tested as a set. Sadly, we can't simply send out one replacement piece and expect it to alight and match the rest of our frame. We would need to exchange your entire frame. Click Here to initiate an exchange. If you have an Alloy Frame, please click here to submit your request. Be sure to explain in the form that you only need a replacement of one side and which of the four sides it is. Top, left, right, or bottom.