Storage containers feature tray lids insure dust-free storage and maximum protection during transport; removable chip board dividers with foam cushioning; made from heavy duty 250lb. test, double wall corrugated cardboard; easy assembly...instructions included; clean, white exterior; and container identification labels. Excess height cars (autoracks, Amtrak Superliner cars, etc) will not fit. These low side containers utilize space more efficiently for N Scale equipment and HO vehicles. These cases are excellent for carrying long unit trains (grain, cement, intermodal cars and up to 48 coal cars) and the engines to pull them. Measures 27 x 7 x 2-1/4" (interior) and 27-3/4 x 7-3/4 x 2-1/4" (exterior).