Squirrel Proof Selective Feeder, by Duncraft. This great design was engineered at Duncraft after years of bird feeding experience. Testing of the Squirrel-Proof Selective feeder proves that the open-wire base prevents seed build-up so that squirrels have no incentive to “hang on” as they look for tasty leftovers. The perfect distance between the seed tube and Havenguard© fencing keeps little paws from reaching the food source: the seed ports. All-metal ports, cap and roof prevent squirrel damage. With no squirrels, birds will perch and enjoy feasting, just as you intended! Lifetime Guarantee. Made in the USA. See below for quantity discounts.