This Fire Department fire truck engine model measures 5 inches long by 1.5 inches wide by about 2.5 inches high.
The wheels are free rolling and made of rubber. Moreover the back wheels have pull back action, which means that it will wind up when you pull it back and it will roll if you let it go.
The detail and accuracy of the model is very impressive. These models don't sacrifice on detail or quality to size. These are very realistic models.