For medium to high traffic situations needing a quick and reliable door holder, the IVES FS9 is an industry top choice. Made from heavy-duty cast brass there is no compromise on quality; when you most need to temporarily keep the doorway clear you won’t look down and see your door holder bent, damaged, or broken. FS9 floor stops are activated by manually flipping the tongue forward on the floor mounted unit, and then swinging hook (mounted to door) into the tongue. You release the floor stop by pushing firmly on the door until the tongue disengages.