Effective Dual Defense / Squirrel-Proof Design: Ingenious wobbling design with built-in springs, provides extra protection against sliding up and down. The squirrel baffle for bird feeders sways from side to side and floats up and down simultaneously, outstanding squirrel protection effect for squirrels jumping from the ground. Durable Galvanized Steel Protective Shield: Quality rust-proof and chew-proof material for outdoor use performs well even in adverse weather, useful tool to deter squirrels from the bird feeder. (whether from the bottom or jumping on from the ground) Slippery Surface without Grip: Slanted squirrel-proof baffle with a smooth surface that wraps around the pole, squirrels cannot grip it or climb past it, perfect for protecting your bird food from squirrel raids. Most Flexible Clamp Suitable for 1/4 inch to 1 3/4 inch: The most flexible pole clamp is suitable for most poles and shepherd hooks, which can be firmly attached to the pole, comes with all the accessories you need and no additional tools are required. Spend More Time Bird Watching Than Chasing Away Squirrels: Not only a useful tool to protect bird seed from stubborn squirrels but also a protector for raccoons and rodents. Elegant experience design matches garden decoration as well.