LEGO Technic: Compact Crawler Crane - 920 Piece Building Kit [LEGO, #42097]Help young LEGO builders understand the basics of gears, force and movement with the LEGO Technic: Compact Crawler Crane Building Set 42097. This detailed, robust model comes with an array of realistic features and functions, including extendable outriggers that move both laterally and vertically, an extendable boom, a hoist with extensive cabling and safety lock, and a 180 rotating superstructure. This 2 in 1 model has lots of cool functions,