Rain-X Roof Top Cargo Carrier Attaches to roof top racks. Measures 35 x 35 x 18 inches / 89 x 89 x 46 cm when in full use Made with rugged waterproof tarpaulin material with heat-sealed seams to keep contents dry Keeps luggage safe, dry and secure - holds (four) 27 suitcases Folds down into small storage bag for easy keeping and carrying Heavy-duty, waterproof zipper and dual, overlapping flaps. Quick release buckles for easy access