Top Loading Rodent Bait Station-JT Eaton. Sometimes a typical rodent bait station will not conveniently fit in such areas such as trees and fences. The Top Loader Bait Station will allow installation in hard to reach areas like trees, ledges, and fences. The gravity fed tube will hold several bait blocks that continually provide fresh bait to feeding rodents. Made of extra rugged black polypropylene plastic, Comes with a hex key.