Versatile Design: The squirrel baffle for bird feeder can be safely installed on 4 inx4in posts or round poles with diameters of 3.5in to 4.5 in. Its dimensions ensure compact and stable installation, effectively preventing squirrels from approaching bird feeders or other items hanging on the poleMetal Construction: Made from sturdy metal material, the guard offers great durability and strength, not prone to tearing or breaking, ensuring long term performance and reliably keeping squirrels from stealing foodSquirrel Avoiding Tips: Squirrels can jump vertically at least 4 feet high; we recommend placing bird feeding platforms at least 8 feet away from trees and wooden poles. Clever squirrels may use the squirrel for bird feeding as a springboard to jump onto the feeding plat; it's best to install it in an open area where no squirrel baffle would lose its function Easy Cleaning: The simple structure of our squirrel baffle for patio, lawn and garden makes cleaning easy that just need to rinse with water or use cleaning tools without disassembly. In size 17inx17inx5.5 inGreat Gift for Bird Watching Enthusiasts: This weather protection squirrel baffle is specifically designed to protect bird food in the garden. A great gift choice for bird watching enthusiast friend on birthdays, holidays, festivals, etc Specification: Material: Metal Size Chart: 17inx17inx5.5 in Package Includes: 1 Guard Baffle Note: Please allow slightly errors 1-2cm differences due to manual measurement.