The original frame (plastic) lasted 18 years, the new replacement frame (also plastic) lasted 18 days! I don't understand why they make them so cheap; For literally a fraction of a penny a part, you can cast it in better quality plastic. In any case, it goes without saying that if you are looking for bulkhead railbox sockets I would advise you to look elsewhere and spend a few cents more and get a better quality or you will be replacing them again soon like I am.