The simplest and smallest of the sets, this is the miniature wingspan of just under 2 ft. Thick, easy to handle parts, rounded corners, softened edges, and simple place-and-click design makes this set ideal for kids. This set will survive knocks and bumps, yanks, sprints and other standard toddler behavior. As with all wing kits, the system is gravity operated, and the collapsed position is the default. The wings are sprung to hold themselves flat to the side but gentle pressure will allow them to swing backwards. They are opened by a pull cord attached to straps at the chest.