Galvanized steel 2 piece center post. Completely pre-strung and ready for installation. Single action opens and closes dryer. Folds completely for storage. High impact plastic post cap and slide. Aluminum Upper Structure. Set-up Size: 73 in W x 73 in D x 72 in H. 12 Line, 165 ft Drying Space. Pole is 1-1/2 in Diameter.