Sunset Inn Purple Martin House System Hole Opening:Round With a capacity to hold

With a capacity to hold 2

Magnification 10x Objective Lens Diameter 50 mm Eye Relief 17

But just attach this lightweight fiberglass seed hoop to almost any bird feeder and catch virtually all the seed your birds spill

Dimensions:

Sunset Inn Purple Martin House System Hole Opening:Round With a capacity to holdSunset Inn System is visually appealing with 6 over sized suites for maximum occupancy, safety and comfort of the nest. House ships fully assembled Reflective white aluminum, insulated attic and roof. Large 11 x 6 compartments are ventilated with each having individual porch and railing. Doors, with offset entrances, remove easily for nest checks Choose round or crescent opening. Includes 14 feet tall, 2 inch square aluminum pole, 48 inch ground