The 10 Link Ramp 4 Paws is designed for dogs up to 160lbs and has a patented roll out, roll up design. The links are constructed of durable polypropylene which is strengthened with glass fibers. The hinges are made of impact resistant polycarbonate. Ribbed rubber footings on both ends provide stability. The 10 Link Ramp is suitable for vans with sliding side doors where the ground to bumper height does not exceed 17 inches, and small sets of stairs. The 10 Link Ramp 4 Paws comes with a washable nylon storage bag and training instructions. When extended the Ramp 4 Paws 10 Link pet ramp measures 37 inches Long x 15.5 inches Wide. The diameter when rolled up is 11 inches. Weighs 9lbs. This item ships directly from the manufacturer. No expedited shipping available. Made in the USA.