Cargo Carrier: Low Profile, Double Swing Away, Hitch Mount, Enclosed, Black Steel. Boxes are lockabe. Each box is 14 1/2" H, 15 1/2" W, 27 1/2" L. On a Chevy Suburban the tail gate can be opened without moving the cargo boxes. The bottom of the frame for the Cargo Carrier is directly in line with the hitch receiver on the vehicle.