ROLA Airfoil SK Rooftop Cargo Box, Black: * Add extra storage space to vehicles with roof rack cross bars with the ROLA Airfoil SK * This sporty and spacious cargo box has an attractive neutral airfoil design that eliminates turbulence and creates a quiet and stable ride * Vortex generators allow the air to flow smoothly under the cargo box * Manufactured with ABS material, this box has added UV inhibitors to make sure the cargo box maintains its look year after year