Stainless steel wire - long lasting and chew-proof
Metal die castings - can't be chewed by squirrels
Powder coated finish - won't chip or fade
UV stabilized polycarbonate tube - won't yellow with age, dependably durable
Metal perches - won't hurt bird's feet, can't be chewed by squirrels
Seed baffle - keeps seed within reach of birds
Seed port size and design - ornithologically correct for birds
Distance from port to perch - ornithologically correct for birds
Threaded base - allows addition of tray and other accessories
First tube feeder invented 1969 - millions sold
A-6F statistics
Length 16"
Diameter 2.5"
Seed capacity 1 lb
6 ports