Etch A Sketch

Etch A Sketch is a registered trademark for a mechanical drawing toy manufactured by the Ohio Art Company. An Etch A Sketch is a thick, flat, gray screen in a plastic frame. There are two knobs on the front of the frame in the lower corners. Twisting the knobs moves a stylus that displaces aluminum powder on the back of the screen, leaving a solid line. The knobs create lineographic images. The left control moves the stylus horizontally, and the right one moves it vertically.

This article uses material from the Wikipedia article "Etch A Sketch" and is licensed under the GNU Free Documentation License.