A 1 euro coin is 2.25cm in diameter and likely looks a little larger since it is shown in the foreground. The camera shown does appear to be roughly 2 coins high by 4 coins long.. so I think 4 X 4 X 8cm may be right (would have to be a pretty big helmet though).
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A 1 euro coin is 2.25cm in diameter and likely looks a little larger since it is shown in the foreground. The camera shown does appear to be roughly 2 coins high by 4 coins long.. so I think 4 X 4 X 8cm may be right (would have to be a pretty big helmet though).
Uh.. like the other guy said.