4x4 Wood Post Birding System Accessories for 4x4 Post allows you to create your own unique birding station out of a 4x4 post. Add to the post a round post flange for displaying your favorite feeder or birdcage, and keep your birdfeeders and birdbaths free of unwanted visitors such as squirrels that make a mess, eat all the food, and in general, aggravate the birds with this Squirrel Deflector. Install below post-top feeder or bath. Sneaky squirrels cannot hang on to the smooth wrought iron surface or climb up underneath it. The system can then be displayed out in the earth of your yard or garden with the ground screw. All components of this system are finished in black powdercoat for coordination and ultra durability. Both deflector and included clamp can be opened and snapped into place around the pole. Recommended height is 4' above the ground.