For Wooden Poles: The squirrel stopper features a square design that securely mounts to 3.5in to 4.5in diameter post or round wood poles. Its precise dimensions a tight and stable installation, effectively deterring squirrels from approaching bird feeders or other items hanging from the pole. Sturdy Metal Construction: This squirrel proof baffle is made of sturdy metal material for superior durability and strength. The metal composition will not easy to tear or break, ensuring long-lasting performance. that it will reliably keep squirrels, raccoons, etc. from stealing food. All-Weather Protection: The slinky for bird feeder pole has a weather- proof power , designed to withstand all weather conditions such as rain, wind, snow, etc., with strong outdoor resilience to continue to fend off squirrels through the changing seasons. Squirrel Proofing Tips: Squirrels can jump at least 4 feet vertically, we recommend that bird feeders be placed at least 8 feet away from trees and wood poles. Clever squirrels may use the squirrel deterrents for bird feeders as a springboard to jump onto the bird feeder, so it's best to install it in an open space, otherwise any squirrel baffle will lose its protective function. Effortless Installation Process: Without removing the feeder pole, wrap the squirrel baffle around a standard inch post and can be secured to the wood pole with the included tapping screws. Then use the screw kits to secure the 4 baffles to form a square. Note:Only the squirrel shield and installation accessories are included, else. Customers need to assemble by themselves. Colour:Black Material:Metal Package Contents: 1 * Metal Squirrel Baffle for Post Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.