The Raid Refil Fly Lure Pack is equipped with a tested and proven food-based lure that attracts once water is added. The Raid Fly trap Lure is easy to use effective way to control flies week after week. This Lure Refill Pack is made in the USA. This lure refill pack is to be used with the Raid Fly Jar. Unscrew the blue lid from your fly trap and pour the contents of this package inside the jar. Add 2 1/2 cups of fresh water inside the trap base and replace the blue lid. Hang or place the trap on the table. Wash hands thoroughly after handling. Store in a cool, dry place inaccessible to children and pets until ready to use. All pest-control items should be kept out of reach of children and pets. For additional instructions and best practices, see the Raid Reusable Fly Trap label for best practices.