The chapelwood squirrel blocking cage is ideal for keeping squirrels or larger wild birds off most standard seed feeders powder coated for durability this product snaps together in seconds for easy and quick use and comes supplied with a securing screw which is suitable for use with a wide range of bird feeders r this particular size can be used with most feeders up to 8 inches in height ensure your garden birds visit time and time again feeding in uninterrupted peacer squirrel proof cag