This is a larger version of our small business card sized mechanical pieces. This one features an image of a bi-plane with a revolving propeller, operated by turning the wheel at the top or bottom. A quote from Amelia Earhart adds a nice touch. If you would like your own quote, or a different color plane, let us know. Good detail including tread on the tires! This mechanical piece has a nice bracket on the back to hang it on the wall - note that you may need two hooks to hold it firmly enough to be able to turn the wheel.