How Magna Doodle Works

Magnetic Eraser
Magnetic eraser
Magnetic eraser

The magnetic eraser consists of a bar magnet in a plastic slider.

Bar magnet and plastic slider

The magnetic eraser sits in the back of the Magna Doodle behind the display, and it can't be seen from the front. The eraser fits in a groove on the case that allows it to slide freely from one side to the other.

Now let's look at the final component: the case.

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