The current production models of the 737, including the 737-900, are the Next Generation of this aircraft family. The Next-Generation 737s feature redesigned wings, more powerful and efficient engines, and advanced avionics. 1:400-scale model is made of precision die-cast metal, and reproduced from Boeing engineering drawings. Stand included. Some small parts may be molded from plastic. Length: 4.125". Wingspan: 3.875".