Challenge the boundaries of your imagination and have fun discovering the world of real engineering with the Meccano Excavator 2-in-1 Model set! Your first mission is to construct a model Excavator. With its custom treads, working boom with bucket and cab that rotates 360Â°, this Excavator is equipped to handle the most challenging construction sites! Once youâ€™re done, you can play with your finished Excavator, or take it apart and rebuild as a Bulldozer with custom treads and real working front scoop! This 2-in-1 working Excavator set includes step-by-step instructions, 254 parts, plus a real wrench and hex tool set. The pieces are made of durable metal and plastic so you can rebuild again and again. Your imagination just got real with Meccano!