A gimer stick represented a specific kind of cane used for walking. The Wookiees presented the Jedi Master Yoda with a gimer stick as a present. While he was a member of the Jedi High Council, and subsequently held the title of Grand Master of the Jedi Order on Coruscant, and even during his exile on the planet Dagobah, Yoda relied on his gimer stick. Even after Yoda's passing and his transformation into a Force spirit, he still had his stick.
The gimer stick's interior also contained wholesome fluids that quenched thirst and functioned as an organic analgesic.