Trio Purple Martin Castle Safety System with Pole, 24 Room Package Contents: 1 twenty four compartment house, 24 Dri-nest subfloors, 24 winter door stops, 1 fourteen foot pole, 1 winch and cable system, 1 two foot long ground socket Openings: 2.125" dia. Apartment Size: 6"L x 6"W at front x 6"H Shipping Weight: 62 lbs