Hi there , The model was built according to the specifications and details of a real future wheel used in space. its created by C4D R20 and is used in the space or fantasy Models or scenes ,its available in more than one format: 1- C4D R20 file. 2- 3DS file. 3- FBX file. 4- OBJ file. 5- Keyshot Packag ( all model details here rendered by Keyshot 8 ). All were collected and Archived to easy download, iam Happy if you message me if you need help or Create Model for You.. .. BEST REGARDS .. Ahmed Hanoon