Starbar Fly Terminator Pro Fly Trap Features A Special Fly Attractant That Flies Cannot Resist Insecticide Free So It's Ideal For Use Around Livestock Operations Plastic Top Won't Rust When Exposed To Elements and Ammonia Break Resistant Plastic Gallon Jug That Can Trap Up To 35,000 Flies Has A Sturdy Handle Which Makes Trap Easy To Hang and Durable Enough To Last Season After Season