This LEGO?Technic Mobile Crane's all-wheel steering allows you to move this realistic crane around your construction site. You can steer and lift heavy loads using its telescopic crane arm, that extends up to huge 23.5" (60 cm), and extend the 4 outriggers for more stability. This detailed mobile crane is ideal for encouraging building and creative play, its intricate construction makes this Technic set a challenge for any LEGO?fan. When the crane's work is done you can rebuild it into a harbour crane for more fun play. You will feel as if you are running your own construction firm with this awesome LEGO set. Go build buildings and large skyscrapers. Hours upon hours of fun and laughter is guaranteed thanks to this wonderful LEGO set.