Ambiguous Cylinder Illusion // How it Works

Buy a 3D printed cylinder from me at https://devinmontes.com/store
or through Shapeways : https://goo.gl/k2qJQz
Get the .STL file for free here : https://goo.gl/6W3x4T

By popular demand, here is a 3D printed version of the Ambiguous Cylinder illusion by Kokichi Sugihara that caught the internet's attention in this video : https://www.youtube.com/watch?v=oWfFco7K9v8&feature=youtu.be