Starbar, 8 Count, 30 Gram, Fly Trap Attractant Refill, Insecticide Free, Attracts Filth Breeding Flies, Pouches Dissolve & Activate In Water, Easy To Use, Non-Toxic, Specifically Formulated For Use With Starbar Traps Including Fly Terminator, Milk Jugg Trap & Captivator Fly Trap & Other 1/2 Gallon & Gallon Sized Reusable Fly Traps.