Description Description: Metal MaterialThe outdoor bird feeder cover is made of quality Metal material, sturdy structure and wear resistant, and not easy to deform or damageSmooth SurfaceThe bird feeder squirrel baffle has a smooth and non grip surface that can stop squirrels, raccoons, and other animals from climbing on your bird feeder, also easy to cleanFitmentThe square design squirrel baffle suitable for 3.5 inches to 4.5 inches 4x4 wooden poles, also can be mounted on round wooden polesSimple to InstallWithout removing the feeder pole, wrap the squirrel baffle around a standard 4x4 inch post and secure it onto the wooden pole Squirrel Proofing TipsSquirrels can jump at least 4 feet vertically, we recommend that bird feeders be placed at least 8 feet away from trees and wood poles. Package Includes: 4 Metal Squirrel Baffle Note: Please allow slightly errors 1-2cm differences due to manual measurement.