The Advantage Flying Insect Trap is equipped with a disposable liner and two fly attractants per trap. The Advantage Flying Insect Trap is for the use of attracting both male and female flies with an all natural fly attractant, Advantage Fly Banquet which will attract a wide variety of flies; stable flies, blow flies, house flies, sludge flies, blue/green bottle flies, large gnats, etc. It is recommended that a thorough inspection of the area involved be carried out, and potential infestation “hotspots” are identified and addressed by sanitation and destruction of breeding sites. Placement of traps can vary from site to site however good results can be obtained by following a few guidelines. Trap units should be replaced every 10 to 14 days or when trap is full, empty the trap and replenish with new attractant.