-True-scale dimensions and details -Selectable interior lighting--choose either track or self-contained battery power -Full-scale length cars, approx. 21.3” over diaphragms -Accurate representation of the stainless-steel corrugations and welding seams -Realistic aluminum finish -Full interior details and interior LED lighting -Full underbody details -Patented Adjust-A-Coupler™ system for horizontal adjustment of couplers and spacing between cars -Working diaphragms -Sprung die-cast trucks -Recommended curves: O-72 Diameter (3-Rail), 36” Radius (2-Rail)