Lego Technic 42042 Crawler Crane

Features Power Functions motorized boom, winch, superstructure and caterpillar tracks
Also features an opening claw, tilting cab, extendable boom, extensive cabling and a realistic exhaust pipe and ventilation grid
2-in-1 model: rebuilds into a Mobile Tower Crane
Crawler Crane measures over 24" (61cm) high, 23" (60cm) long and 7" (20cm) wide
Mobile Tower Crane measures over 23" (60cm) high, 22" (58cm) long and 7" (20cm) wide