Pull-Back Function - LEGO Technic model car kit for kids, teens, and adults to build features a pull-back toy racing car with authentic design and LEGO augmented reality app Authentically Designed - This Porsche model car is an original model replica of the real-life Formula E Porsche race car, complete with sponsor logos AR Compatible - Download the LEGO Technic AR app, scan the model car, and pull back to launch it using your foot and see it come to life in exciting races I will not be taking offers at this time for this item.