Celebrate a hero of the building world when you recreate this replica of the largest Cat bulldozer with the LEGO Technic Cat D11T Bulldozer (42131) adult set. With this large LEGO set, adult fans can enjoy a little downtime and indulge their passion. Like the real Cat bulldozer, this remote-controlled construction vehicle is built in modular sections. LEGO fans will love the new element - a large sliding blade that can be tightened and loosened. And once assembled, the fun really begins. The remote-controlled vehicle via app is packed with lots of authentic functions to discover. Use the Control+ app to drive, steer and explore this high-performance machine. The app provides realistic movement when you raise, lower or tilt the bucket, or when you raise or lower the rear ripper and ladder. LEGO Technic models delight with movements and mechanisms that allow LEGO builders to explore engineering concepts in a simple and realistic way. The set is part of a series of high-quality LEGO sets for adults, it includes easy-to-understand building instructions and makes a wonderful gift for Christmas, birthdays or other occasions, for yourself, LEGO fans and lovers of motor vehicles of all kinds.