Say Goodbye to Flies - Attracts, traps, and kills a variety of flies, including house flies, barn flies, and bottle flies. They go in for a treat but are unable to escapeIrresistible to Flies - Combined with the bait, the trap’s color and diamond-shaped lid is designed to attract more fliesEasy to Use – Simply pour in the bait, then add water to the fill line and swirl to mix. Add more water as needed to keep the bait moist and flies submergedReusable – Once filled with flies, empty the trap then refill bait and water to continue trapping fliesFor Outdoor Use - These traps are intended for outdoor use so you can draw flies away from your home before they can get insideThe bait requires an activation period of 24 hours after adding it to the trap before it reaches peak effectiveness