Rentokil advanced fly trap window stickers are especially designed to attract flies and control fly activity indoors it leaves no trace or sticky marks when removed from the window leaving them looking nice and cleanbeing insecticide free the stickers are ideal for all rooms in the home to effectively get rid of flies did you know they are perfect for the greenhouse too they also trap moths wasps and beetles and are insecticide free so kind to the environment and to youcontains 4 sticke