Economical Way To Catch Over 35, 000 Flies Per Gallon Set On Ground Or Hang Easy To Use Just Add Water and Attractant and Pop On The Top Insecticide-Free Reusable Made In The Usa Ingredients:Kit Comes With 2 Attractants/2 Jug Traps/Patented Attractant Uses Fly Pheromones To Attract Flies//Trap Contents Should Be Agitated At Least Twice Weekly. Item# S-272477 and 528678 Attractant Can Be Used W This Product