Myard MBF 75160-G Double Sided Squirrel Proof Bird Feeder w/Weight Adjustable + Extendable Perch, 3.6qt / 6lb up Seed Capacity (Green) Durable powder coated steel body and acrylic construction. Squirrel's weight on perch closes access to seed.  Assembly required, four sets of screws + nuts, and one cross bar. Easy to install. Metal hanger included.  Easy to fill and clean.  Double sided design attracts more birds. ***SPECIAL FEATURE: The perch bar spring force can be ADJUSTED for different sizes / weights birds. (See images). Extendable perch length for small and bigger birds. SIZE: L 8.5" x W 8.5" x H 12" ; Holds 3.6-5.3 qt / 6-9 lb. mixed seed capacity.