Useless. Unplayable.

The name and the packaging suggest here the child would get a meaningful toy. Unfortunately, the content is in fact neither toys nor any educational sense! The content includes LT print the pack.:
3D model of the sun
3D model of Earth
3D model of the moon
Rotation pin
Sealing ring
Template of the planetary system
Template of the Solar System
Mask of the circulating system
Illustrated instruction booklet.

What you find in the package: Yellow plastic ball (sun), blue plastic ball (Earth), small white ball of plastic pin (Moon). Made entirely loveless.
The Rotatisonsstift is a kind of plastic nail, with the sealing ring is probably a small plastic disc meant. What should a seal it is beyond me to this day ...
The stencils are informative with loose, style similar to representations of the solar system Space motifs, printed cardboard discs. The instruction booklet is Einein piece of printed paper (neudeutsch Flyer) with a confusing instructions and little else content.

Game = 0 (in words zero), durability, because if would play with it: good low

What a pity. It would have been really not hard, the whole at least a little more good than the statement that the sun is the center of the solar system, the earth around the sun and the moon around the earth revolves mitzugeben.

My advice: Instead of these "experimental kit" to buy, rather make a trip to the nearest planetarium. Because there is more fun and more to discover, could convey as these costs no matter how benevolent consideration!