STL files store information about three-dimensional objects. Specifically, the surface geometry of an object with no representation of color, texture, etc.
How can I print this STL file?
You can purchase a 3D printer and print it yourself, or use a service like Shapeways. There you can upload your model and pay to have it printed in various materials like plastic, or even metal.
Only my public contributions are showing. How can I see private contribution counts too?