2" x 2" Square Opening is 1 1/2" Diameter Made from Copper Fits on Any Bird House 4 Mounting Screws are Included Maintains Entry Diameter
Description
Copper Portal will fit on any bird house. 1 1/2" entry is perfect for Eastern Bluebirds. Installs with the 4 included screws. Helps maintain the entry diameter and prevents predators from chewing around the opening.