It has the dome model as flat Earthers claim it to be. You can play around with it and see how the moon and the sun behave in your dome model.
http://walter.bislins.ch/bloge/index.asp?page=Flat+Earth+Dome+Model
The big issue with it is this:
"Light-Bending: This Model shows how light rays from the Dome on the Flat Earth Model have to be bent to match the apparent positions of Sun, Moon and Stars and to produce the Tracks, Star Trails and Day-Night Terminator as observed in reality for each time and location on earth. Only by bending the light rays as shown by this Model it is possible that Sun, Moon and Stars can go apparently down below the horizon, while they are still above the Flat Earth."
It appears to not be so much of a model, to be just showing what is needed.