Lund Receiver Hitch Mounted Cargo Carrier Accessories include the Heavy Duty Storage Bag Waterproof PVC dry storage bag protects your belongings. Heat sealed seams and reinforced zipper flaps keep the weather out Durable polypropylene straps secure the bag to the rack. Works with Stationary and Fold-Up hitch mount cargo carriers Store over 11 cubic feet of cargo. (60" x 18" x 18")