LEGO Technic 42009 Mobile Crane MK II(Discontinued by manufacturer) 2 models in 1: rebuilds into a container stacker and truck ; Includes 8882 LEGO Power Functions XL-Motor and 8881 LEGO Power Functions Battery Box Features LEGO Power Functions motor-powered extending outriggers, lowering feet, extending or raising crane arm and retractable winch Also includes a rotating superstructure, 8-wheel drive, 5 axles, 10 wheels and a detailed V8 motor with moving pistons Extend the crane arm over 30" into the air! Measures (with retracted crane arm and outriggers) over 8" high, 23" long and 5" wide Container stacker measures over 20" high with boom fully extended, 19" long and 7" wide ; Container truck measures over 3" high, 11" long and 3" wide