Dorothy"s Cardinal Feeder, Brass rod- dependably durable, easy to hang Collet technology- adjusts dome position on brass rod 15 diameter adjustable dome- protects seed from weather and keeps out large birds UV stabilized polycarbonate- won"t yellow with age, dependably durable, Product Dimensions (H x W x L): 0, 00 x 0, 00 x 0, 00 SKU: GC9268