Squirrel Buster Classic
The Squirrel Buster Classic is a value-priced, high quality truly squirrel-proof bird feeder. It provides both a perching and clinging environment, disassembles easily for cleaning and features seed tube ventilation to keep seed fresher. This 1.4 quart feeder comes with Lifetime Care.
Here are some things to check/implement with your Squirrel Buster Classic Feeder to make it truly squirrel-proof for adult red and gray squirrels (please note that juvenile red squirrels and chipmunks can sometimes access seed due to their light weight):
1) Observe the manufacturer's stated installation clearances, e.g. install the feeder with 18" of clearance between top of feeder and the branch it is hanging on, 18" of clearance from launching points below the feeder, and 18" radius of clearance around the sides of the feeder;
2) Don't exceed the maximum level of seed as indicated by the bottom of the yellow center post cap, otherwise the shroud will not be able to close properly; and
3) Make sure the negative grip tube is in place on the hanging wire right against the top of the feeder to prevent squirrels from hanging by their hind legs from the wire.
The Brome Bird Care website has great illustrations of these parts: https://bromebirdcare.com/squirrelbusterclassic/