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I am looking for the name of a mechanical piece. Here is the description:

The piece would be a telescopic rod of about 1 cm in diameter and 30 cm in height that would constantly try to extend vertically, and a weak resistance such as a when a finger presses a button would allow it to retract.

Does anyone know the name of this kind of piece?

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  • $\begingroup$ spring loaded pogo stick $\endgroup$
    – jsotola
    Feb 24, 2023 at 3:24

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Although the spring loading aspect and the finger retraction aspect aren't certain, you may be describing an expandable baton. The sized described in the linked site range from 12" (30cm) to 26" (65 cm) of varying diameters.

I found the linked site by searching for spring loaded telescoping rod, which returned a substantial number of inaccurate results.

One other return was for an expandable baton directed at self-defense, in a manner similar to the first link. Photo below from this linked site:

telescoping baton

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  • $\begingroup$ What materials are used in the manufacture of these pieces? Is CFRP used everywhere or only in limited areas? $\endgroup$
    – dtn
    Feb 24, 2023 at 6:16
  • $\begingroup$ @dtn please do not post irrelevant questions in comments ... post your own question instead, ask here $\endgroup$
    – jsotola
    Feb 24, 2023 at 18:48
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This component is also known as a gas cylinder or gas lift. They are used to help open liftgates and rear windows on cars and minivans.

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