Ecotrap Guard 20-Pk JUMBO Fly Trap - Disposable Non Toxic Bulk Big Catcher Flycatcher Outdoor Hanging Bag Traps Flies Control Bags JUMBO trap holds up to 40,000 flies and lasts up to 6 months. SIMPLE: Just add water and hang. Dispose of in trash when full. SAFE: Non-toxic, chemical-free, pesticide-free bio-control product. SANITARY: Suited for processing plants, agricultural areas, livestock shows, fairgrounds, etc. OUTDOOR: Use only in well-ventilated areas.