The LEGO TECHNIC Motorized Excavator 8043 is fully remote controlled excavator that can rebuild into a tracked loader. No construction project is indeed to big for this heavy duty LEGO machine. As simple as activating the swtiches on its Power Functions dual infrared remote control, you can easily drive te excavator and even give the cabin a 360 degree spin; you also can lower or raise the articulated arm to operate the shovel for some digging. The excavator's double remote controls tracks will allow users to let the set run back and forth, and its arm can be raised or lowered, and its shovel can be made to dig. With 1,123 LEGO pieces, even the part of putting the set together is tons of fun.