Description This kit uses a cap that fits any milk jug and turns it into an inexpensive fly trap. Just mix the included attractant in a jug, screw the patented cap on, and hang to start catching those annoying flies. This is perfect for the barn, patio, garage, or where ever you have a fly problem. Product Features: Catches over 2.5 times as many flies as rescue fly trap Set on the ground or hang up Insecticide free Reusable