This Lego Disney Elsa's Castle Courtyard (43199) set, which includes a castle courtyard arch with fountain, detailed mini-doll figure, Lego Snowgie figure, and the special 'diamond' dress, which connects with the fountain bottom to act as storage for the mini-doll, offers open play possibilities for kids aged 5 and up. The free Lego Building Instructions app contains interactive digital building instructions that help kids envision the model using intuitive methods.