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. The Crawler Crane folds into a compact vehicle that travels on rugged crawler tracks and comes with a classic yellow and black color scheme with authentic sticker detailing. Rebuild this 2-in-1 construction toy to create the LEGO Technic Compact Tower Crane. Features Features extendable outriggers that move both laterally and vertically, an extendable boom, a hoist with extensive cabling and safety lock, 180°-rotating superstructure and rugged crawler tracks. Drive the Compact Crawler Crane into position, then operate the winch and superstructure to lift and deliver the load with pinpoint accuracy. This LEGO Technic set is designed to provide an immersive and rewarding building experience. Help your young LEGO builder understand the basics of gears, force and movement with this realistic LEGO Technic building set. This construction set is ideal for both beginners and builders who are familiar with the LEGO Technic system of building. 2-in-1 model: rebuilds into a Compact Tower Crane. Compact Crawler Crane, with boom and legs extended, measures over 20" (51 cm) high, 19" (49 cm) long and 15" (40 cm) wide. Compact Tower Crane, with boom and legs extended, measures over 19” (50 cm) high, 13” (35 cm) long and 8” (22 cm) wide.