Auto Jigglers are tryout keys, primarily used on automobile locks.  They are 'jiggers' in the sense that you insert the key fully into the lock and work it both up and down and, slightly, in and out . . . all while applying a very minute amount of turning tension on the lock.

Jiggler keys, sometimes known in the trade as tryout keys, have a spotty reputation with regard to how effective they are.  In my opinion they are as valid a lock picking tool as any standard manual pick, because skill is the driving determination, not the tool.  These jiggler keys do work, and in the hands of a locksmith who has had experience using them they can be an even better way to get a vehicle door open (or an ignition turned) than many other alternatives.  At this price, why not have a set of SJG-10 picks in your tool bag?

SJG-10 SouthOrd Auto Jigglers can be effective when other lock picking methods have failed.