7249 XXL Mobile Crane is a CityConstruction set released in 2005. It contains one XXL Mobile Crane, which has an arm that extends over 20 inches, several heavy tires, several construction materials, and two minifigures. The set also includes three work cones and one barrier.
The prototype of the set is very different - the prototype has four wheels instead of two, indicating it would have sixteen wheels rather than the final's eight when one counts the wheels together. There are barriers which looks like very simple barriers. There are also different minifigures which have different clothing, white and blue, it also appears that there would be three minifigures instead of two and the XXL Mobile Crane's hook also looks like a simpler hook, like the barriers. The prototype set also lacks cones.
In many promotional images and catalog illustrations, the crane‘s wheels are commonly turned the wrong way around.