BioCare Window Fly Traps for Indoor Houseflies, Nontoxic and Pesticide-Free, Made in USA, 4 Count UV dye in glue attracts houseflies, cluster flies, garbage flies, blowflies, and more Non-toxic and pesticide-free; safe to use around children, pets, and food Window sticker removes easily without leaving residue Replace every 3 months or sooner when full Includes 4 indoor fly traps Made in the USA