The average person will go through 3 backs in their life time. After a few years, spines go bad and must be replaced. People used to use whatever they had lying around, like a broom stick, or masking tape. But thanks to advances in medical science, people now replace their spine with a hydraulic piston. Remember, don’t ever throw your back out, recycle it.
Do you have any plans for back enhancing surgery?
Do you save your old backs?