Spray cans & markers?

Question

The metallic thing inside a spray can, the thing you hear when you shake it and in some markers...what is that and what is it's purpose?

Answer 1

That's so you can tell how much paint is left in it. It makes less noise when it has less paint.

Answer 2

It is a metal, glass or plastic ball called a PEA inside of the can, which is used to stir (mix) the paint without touching it.

Answer 3

It is like a small marble.  It is meant to mix up the contents like stirring a gallon of paint before you use it.

Answer 4

Jennifer is dead on!

Answer 5

i think its to thin out the liquid inside

Answer 6

to shake up the paint inside?

Answer 7

its there to keep the fluid in it flowing so that when you press the button to let it spray it will come out easier (: