Although this rotation spherical motor arrived well packed, unpacked but struggled in interior already properly. Where? .... The cogs flying loose in the housing around which is also located on the "motor and cable cover" contact of the battery has no firm grip and the Drahtverlötungen are so open to reason that you already when you lift the lid (for Inserting the battery required) the first soldering could tear because the cables are kept extra short ... Actually, I'm very patient and talented in technical things, but here I have surrendered after an hour ... it was not possible to me, the loose gears (which are both in the upper and the lower part of the "puzzles" are) to interlink ... shame ... I think: this thing had not already been damaged, could have possibly go if you really never have to open the "motor region", because the motor function could be demonstrated by a clear (... and quite loud) noise.
