! Important Material Notice ! : Recently some of you have tried to buy this model in WSF, Detail and other materials, but the model got rejected. I am very sorry about this, as this model used to be printable in those materials when I first offered it for buying, but since then the checking software of Shapeways got updated and rejects the model for having thin walls. Currently due to the strict Shapeways software, this model is only Printable in Frosted Ultra Detail material. This is confirmed as I have one on my desk made of Frosted Ultra Detail, with a rotating turbine.
This is a little thingy for your keychain. It is in the shape of a jet engine, a great gift for aircraft fans! The turbine inside is designed to rotate.