Metal Bird House Portal Protector 1 1/2 inch
Predatory birds and squirrels sometimes widen the hole of wooden birdhouses to get at the young inside. The Metal Bird House Portal Protector will prevent predator damage to your bird house and reinforce already damaged birdhouses. Installs quickly and easily with 2 included screws. For bird houses with 1 1/2 inch entrance holes.
- Inside diameter: 1.5"
- Outside diameter is 2.5"