This is a larger than bison tube, smaller than 35mm film canister container.
Just when you thought there was no place left in Keizer station, someone takes a close look and finds a spot to squeek one more Cache in, there may have already been one here before that got muggled,SO as usual take a good look around to make sure no one is watching you, You will feel this one before you see it! Dificulty rating will be a little higher due to muggles. be sure to put it back the same so the hint works.
Thanks to Lord Draco for the cache