Egg Kill & Pyrethroid Resistant Bedbug killer. Odorless and non-staining formula eliminates bedbugs, including those resistant to pyrethroid based products. Leaves no visible residue. Ideal for treating mattress seams and folds, box springs, carpets, headboards, furniture, and luggage. 16-week residual on ceramic, non-porous surfaces. 4-week residual on bedding and soft surfaces. Active ingredient: 3-phenoxybenzyl.