Has a light chain (metal) that has been regularly disconnected at the metal connector between the attachment chain and the extension chain. Bending the plug back into shape or replacing it with a new one will only work for a while. I decided to give them a try, although I wasn't too happy that they were big and plastic. But it worked great! (I put two metal balls in each of the holes because this is for the larger plastic/metal ball chain). What should I do with the other nine?