Live Free Kiltrex Powder 100% Polypropylene Imported KiltreX Powder is activated with distilled water for a powerful non-toxic KilSpray that treats active infestations Destroys bugs by attacking the parasite's skeletal structure with KiltreX, a proprietary blend of plant-based materials Can be used on furniture, mattresses and box springs; particularly useful for the hard to reach cracks, crevices and seams that bedbugs love to hide in