The Penrose rectangle is what's known as an impossible object. It's an optical illusion, drawn to look like a three-dimensional object but one that could never actually exist. Op Art artists like Victor Vasarely exploited this visual dynamic, adding color and creating a new art form.

Details
Materials: Solid brass, electro-plated with hematite finish, giclee print. Ear wires are hematite plated.
Dimensions: Hangs approximately 1.75 inches