Tvar koule je stejnÃ½ na vÅ¡ech stranÃ¡ch, takÅ¾e je jednoduchÃ© a snadno vejde do mÃ stnosti, stejnÄ jako sloÅ¾enÃ z Arku a srpek mÄ sÃ ce tvar.
The shape of the ball is the same on all sides, so it is simple and can easily fit into the room, as well as the composition of arc and a crescent shape.