Now you can easily turn your empty soda or water bottles into handy insect traps. These easy-to-use traps screw on top of your bottle and are specially-designed to trap flies or wasps. Simply fill the bottle with sugar water and they'll help keep pesky bugs away from your outdoor events. The blue tops will trap flies inside, while the yellow tops will trap wasps. Each set includes 6 traps. Weather resistant plastic with hook for hanging. Each approx. 1 3/4"Dia x 2 1/2"H. Set of 6. Colors available in Blue (traps flies) or Yellow (traps wasps).