Lot of 144 new pin keepers. These are really simple to use. Each pin keeper has a set screw , which is tightened to the pin post to ensure it's securely locked on. Keeps you from losing your pin . Receiving 12 packs of 12 pin savers  , each pack also contains an allen wrench to tighten them on with. These are great to lock and hold your hat , cap , brooch or lapel pin in place and never have it come off.