Droll Yankees SF-D Suet Feeder Double Can be hung using the included versatile, heavy duty chain Heavy gauge wire - holds up for years of use Holds two suet cakes Birds that may use this feeder: Bluebirds, Catbirds, Chickadees, Jays, Nuthatches, Orioles, Mockingbirds, Tanagers, Titmice and Woodpeckers Lifetime warranty against squirrel damage