Features: Not easy to rust:-This squirrel baffle is made of plastic, very durable and will not rust Product advantages: smooth surface, black powder-coated plastic has a smooth non-grip surface, which can defeat the most stubborn squirrels and raccoons to reach your bird feeder. Advanced design: The film around the squirrel baffle can be quickly connected to the existing bird feeder rod or shepherd hook (diameter 1/2 to 1 inch), and can also protect the hanging bird feeder-all accessories. Easy to use: when installed in a place with a bird feeder, it can be installed directly without removing the bird feeder. Specification: Size: 12/14/16/18 inches Color:Black Material: Plastic Package Included: 2pcsx Squirrel Baffle Made of plastic, very durable and will not rust. Install directly without removing the bird feeder. A variety of sizes to choose from 12/14/16/18 inches.