Zero In Kitchen Insect Killer. Zero In# Kitchen Insect Killer uses aureola yellow colouring to attract flying insects to its long lasting adhesive coating. Once the flies are stuck, they stay stuck! Zero In Kitchen Insect Killer will last all summer long, catching nuisance insects in the home, conservatories and green houses whilst keeping dead flies hidden from sight. (when keeping the unit in the box provided) The unit measures approximately 26cm long and can be hung or placed around the home. A safe, convenient and poison free way to reduce flies and insects in and around your indoor space.