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3 votes
Why do spray cans have a marble

User Siyu
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8.1k points

2 Answers

4 votes
to to mix the paint evenly in the can before you spray it so it doesn't get stuck in the nozzle. great question btw.
User Mark Eric
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8.4k points
4 votes
It is used to mix the paint when you shake it

User Matias Gonzalez
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