This is a piece of Leatherface's genuine chainsaw used in Texas Chainsaw 3D!!!! It measures out to be roughly 3 of 4", and is made out of real metal!!! It is covered in old dirt and sawdust, and even does have a slight industrial odor to it!!!! There weren't many hero saws used in the production, so to have something as simple as a piece of the blade goes a long way for many collectors!!! Comes with a Certificate of Authenticity from Raybin Management!!!!