Adds another 16"" arm with locking hook to the Adjustable Deck Clamp, Pole and Hanger or the Shepherd"s Envy Pole, Galvanized powder coated steel construction, Specifications:, Dimensions: 18 x 1, 5 x 9 (assembled), Mounting: Attachment option on the Ultimate Pole System, Construction: Galvanized powder coated steel, SKU: DRLLYNK128