Clamp-on double arm adjustable deck hanger with a 42" overall maximum height and a 17" reach. A thumb screw locks the arms in place. This deck hanger easily holds 10# bird feeders or flower baskets. The large turning knob allows for effortless clamping to your deck rail. The clamp accommodates rails up to 3-1/2" thick. *NOT AVAILABLE FOR SHIPPING. IN-STORE PICKUP OR LOCAL DELIVERY ONLY* Erva.