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. Measures 27 x 7 x 2-3/4" (interior) and 27-3/4 x 7-3/4 x 2-3/4" (exterior).