Brass Squirrel Proof Nut & Seed Feeder-- "The Protector" Squirrel Proof Nut and Seed Feeder. This unique sunflower and net feeder keeps squirrels and large birds at bay by surrounding the feeder with a heavy duty steel cage. Large enough to allow various birds through, but small enough to protect against marauders. Constructed of steel with a hammered pewter colored top, it holds up to 2lbs of seed.