The Stokes Select® 18 in clamp on deck hook positions your feeder away from your deck railing for close viewing and a cleaner deck. Its durable, solid steel arm extends 18 in from the deck rail and is powder-coated with a black finish to resist weather. The clamp on deck hook fits onto horizontal railings up to 2 in THK to conveniently hang feeders and plants. Simply clamp the hook onto your deck rail by tightening the hand knob, with no tools needed.