Terrain forms convex and concave
This is educational help, which shows great terrain in 3 dimensions.
Here mountains, hills, hills, valleys, valleys ... you do not have to imagine - they are - convex and concave.
Thanks to the attached, described scale, it is easy to count the layers above sea level and below sea level.
The river that flows into the sea shows 0 level splendidly.
The color tone may be slightly differet from that seen on the monitor.
- Educational aid consists of two forms. One is for work, all elements are loose, the other is "error control".
- The set comes with a scale and a river that marks the sea level.