Dorothy's Cardinal Feeder, by Droll Yankees. This feeder is a covered platform feeder, which Cardinal’s love! Versatile clear view platform feeder. Brass rod - dependably durable, easy to hang. Collet technology - adjusts dome position on brass rod. 15 inch diameter adjustable dome- protects seed from weather and keeps out large birds. UV stabilized polycarbonate - won't yellow with age, dependably durable. 13 inch diameter platform holds seed, fruit, suet or mealworms. This platform feeder has a diameter of 15”. Made in the USA. See below for quantity discounts. Threaded base allows feeder to be pole mounted with a Flower Garden Pole.