Looking for a special gift for kids who love construction vehicle toy sets? This 2 in 1 LEGO Technic Heavy-Duty Excavator (42121) toy has plenty of features for hours of creative play. Boys and girls aged 8 and up will enjoy an immersive challenge with this building set before exploring the digger toy's realistic features. Digging, driving, rotating; there's so much to discover in this cool kids excavator toy. There's also a detailed cabin with a drivers seat and control panel. The set comes with extra LEGO brick stones to dig up and 4 cones. When it's time for a new challenge, the model rebuilds into a tracked tractor with a backhoe. The LEGO Technic universe offers advanced building toys for LEGO fans ready for their next challenge. With realistic mechanisms, these rewarding sets are a great way to introduce kids to the world of engineering. Measures over 9 in. (23 cm) high with arm up, 14.5 in. (37 cm) long with arm fully extended, and 4 in. (11 cm) wide.