Very simply: it is easily mounted by an adult. It is a good size and well stable. An explanatory note on the assembly and the stars and stars is included. Easy to handle, ideal for 6 years with an adult or from 10 years. We clearly see in the telescope and after a small adjustment we appreciate the galaxy! A magnificent show, an original gift that will appeal to young and old! In addition we can take it everywhere: the carton has a handle!