Gogogu 2 Pack Electronic Insect Killer Mosquito Trap Bug Zapper Mosquito Killer Lamp Eliminates Flying Pests Gnat Trap with Night Light The Trap-It is to be located between your hanger and your feeder. Trap-It makes a moat between your feeder and crawling insects. Easily mounted with a 5/8 inch diameter open top hanger and a 3/8 inch diameter open bottom hanger. Measures 1.75" high x 3" in diameter.