I needed (three) of these to plug the (old) holes in my mailbox (to keep it watertight) (ie) after I got mine (old broken one) post box flag with new one (which needed two new holes) The only way I could (find) to buy was to buy a pack of twenty five Someone needs any extras (joke those (three) holes in the old mailboxes a slightly larger so that these (slightly larger) stubs fit.