Nuclear submarine model could be used as a key chain ( there is a hole in the back of the model to hang it with a chain ) or a desk top model
model format : STL
Default size X: 38.00 mm, Y: 137.79 mm Z: 45.01 mm and you may customize the model scale by the slicer based on your needs and the available printer print volume
Please leave your comments \ needs for further improvement