Control fruit flies indoors, in compost bins, worm bins and garbage cans. This simple trap effectively catches annoying fruit flies wherever they occur. It can be used anywhere, even where foods and vegetables are stored. Yellow color and bait attracts flies inside the trap, where they are trapped and killed on a long-lasting sticky board. Comes as a set of two traps. Each trap lasts one to two weeks or until full of flies. Compostable: simply remove the lure vial and compost these disposable traps - bugs and all. Just throw them in the compost pile or worm bin.