For the past 45 years we have been selling the LCN SEM Magnetic Door Holders. We are now offering online the replacement components for these holders. We have the Armatures (door mount part), Magnetic Cores, Cover Plates, Extensions and the Ball Pinot Connection Link. These components are in stock for quick delivery. If you do not see the piece you are looking for, contact us and we will send you a parts manual. We do not have the Rixson pieces up yet, but they are also available.