to grab items that are just out of reach
The Ghost Gaffer was a handy tool that was stashed away in the Ghostbuster Backpacks. It was a extendable stick made out of an unknown alloy with a claw like hand on top, which could be used to grab an item or, if need be, to pry something lose.
Senior Ghostbusters Jake Kong and Eddie Spenser used the Ghost Gaffer to escape from a lamppost after Prime Evil directed a powerful gust of wind at them which caused them to dangle from the lamppost by the straps of their Ghostpacks.
The Ghost Gaffer was first used in the episode Back To The Past.