Kettle Moraine Cedar Replacement Predator Guard with Copper Portal for Eastern Bluebird Houses 1 1/2" Opening
Replacement Predator Guard with Copper Portal will fit most bluebird houses. Approx 3.5" square and 7/8" thick. 2- 1 1/4" Screws are included for mounting. Copper portal will help maintain entry and prevent predators from chewing opening