What is this THING and what is it USED for?

What is this THING and what is it USED for?

It's Manic Monday... time for a What Is It? question.

What is the thing in the picture and what is it used for?

Hint: You may have one in your car.

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I guess this was too eady. Just about everyone got it tight.
It is, of course, a scissors jack, usually used to raise the car when changing a tire. As some pointed out, some cars have one in the trunk (boot) along with a spare tire (tyre).
What is this THING and what is it USED for?
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