Search results for query: *

Mine is a guillotine style with bars on each side on the inside. It slides up and down but cannot be pushed in. It's also a metal door. And it lowers below the opening, so no racoon fingers can pry it up.

Mine's not cheap, but it works great and it's well worth the money. I have the inside install with the light sensor. http://www.foyspigeonsupplies.com/catalog/2100-2107.html