Cleverly masquerading as a key, these little devices clip onto your key ring and contain a plethora of tools in a very compact format. The 6-in-1 features a straight/serrated blade, three screwdrivers and a bottle opener. The 8-in-1 features a jeweler’s screwdriver, slotted and Phillips screwdrivers, nail file and cleaner, wire cutter/stripper and bottle opener. Very handy for something that weighs a quarter of an ounce and is only 2.75" long when closed. That’s a lotta fob. So unobtrusive you may forget you have one with you. So don’t.