Keyboard aviator cable rod

I'm not entirely sure how it's called, but it's a rod that goes into the spiral part of your keyboard cable. I made it hollow inside, so you can either add weight to it (like putting big screw, metal ball bearings, sand or whatever you want - the tiny cylinder is for gluing it on top, so it's optional) or use it as a stash (mind to tighten the cap lightly, because the thread can brake off the rod). 

The dimensions are as follows (you can edit the .stl if the spiral on your cable is different than mine):

End caps diameter - 22mm

End caps width - 8 mm

Rod diameter - 14 mm

Inner stash diameter - 9 mm

Space between caps (length of the cable spiral, so not including the thread) - 133 mm