ROLA 59004 Airfoil LG Black Roof Top Cargo Box It is 12 cubic feet transports luggage of all sizes, 14 inch wide opening allows suitcases to easily fit inside Neutral airfoil design eliminates turbulence creating a quiet and stable ride Vortex generators allow the air to flow smoothly under the cargo box It has contoured bottom which allows rear vehicle hatches to open freely Manufactured from ABS material with UV inhibitors to prevent fading