Bonide Revenge Liquid Ant Baits are pre-filled bait stations for the control of sweet, grease, Argentine and carpenter ants. It also kills roaches. Large 0.75 oz. bait stations with 1% low-dose formula for best control of large and multiple colony problems. Ideal for indoor and outdoor use. Active ingredient: Disodium Octaborate Tetrahydrate 1%. Other ingredients: 99%.