these things are not toys- they are only designed to be deployed in emergencies. Constant extension and retraction will scuff and damage the finish at the points at which the telescopic sections bond together through tightness of fit.
Also, the more extensions you deploy, the weaker the catch clip in the handle cap will become, meaning that it will not remain retracted for the 'flick' to open it- gravity will just make it 'fall' open as you draw it, making the rigidity compromised. New caps/clips can be purchased if necessary.
like I said, these are not toys, or ornaments, they are practical tools for law enforcement officers- the shiny paint is not a priority.