The Con-Cor Rivarossi N Scale T6b 2-8-8-2 MALLET Undecorated is a vintage model train steam locomotive in N scale. This black plastic locomotive features a 2-8-8-2 wheel configuration and is undecorated, allowing for customization. With a scale of 1:160 and a grade of C-6 Very Good, this locomotive is a unique addition to any model railroad collection. Tested. Working good.