• Open around the clock, with no gate or ticket, so it works for a short stop as well as a whole morning
• Summer library and café inside the park, run by Järvastaden with Solna city from mid-May to early September only
• Designed with the authors: George Johansson and Jens Ahlbom, who made the Mulle Meck books, helped plan it, so young fans will recognize the characters

A theme playground built around Mulle Meck, the Swedish picture-book mechanic, by artist Tor Svae with the books' creators, from old scrap. Kids climb into Daisy Diesel's garage, Wilma von Winkelhock's observatory, a space rocket and a boat by a small pond, watched over by Mulle and his dog Buffa.

In summer a children's book library and café open inside the park.