# How can I draw the inside of a box as well as the outside?

I have a 3D box in which I have some holes. The thing is that when I look through the holes, I can't see the wall of the box that should appear as the inner wall.

How can I draw this as well?

In XNA 4.0 : GraphicsDevice.RasterizerState = RasterizerState.CullNone;