Package Includes: 5 piece green fly trap insect. Each fly trap insect size: 23x33cm/ 9x13 inch. When hanging, it has large capacity to contain the fly. You dont need to clean the fly cage frequently. Durable Material: Made of high quality gauze mesh construction, environmentally friendly, durable and reusable. Working Principle: The fly killer adopts the principle is to use food bait to entice flies into the cage and enter the cage without food to die naturally. Due to the flies like to eating fishy foods, you can put the bait fish intestines, rotten fruit, and other foods in it. Easy to Use: with hook, just hang in 1 meter from the ground. Spring season hangs in plenty of sunshine, summer hangs in dark places. The bait needs to be kept moist, and it needs to be stirred with water to achieve the lure effect. And you can empty your fly trap by disconnecting the bait pot and inverting the mesh funnel. Widely used: Widely used in parks, family farms (producer markets), canteens, restaurants, slaughterhouses, farms, green belts, toilets, garbage bins (fields) and other public places.