HOW TO USE-Trapping Tips:Set up Your trap; empty contents bait into trap,add warm water to fill line, swirl to mix - As trap fills up more, add enough water to keep flies submerged - Screw on to of the trap tightly,Click on the hood on top of the cover until it clicks - Affix the hanging chain to the hook- Hang it up outside your house and see the great results within hours! Washable and reusable - Convenient wide mouth for easy cleaning and filling