Eliminate infestations with the Combat Combat Ant Killing System Child-Resistant Kills Queen & Colony. Sprays and pellets may kill off some of the problem but fall short by failing to target the root cause. With Combat bait stations you can attract three times more ants for a quicker distribution of ingredients for the fastest kill to the entire colony. The bait is encased in a compact disc that emits no vapor or fumes and requires no monitoring. They can be used both indoors or outdoors for easy use wherever infestation strikes. Each unit includes six ant killer bait discs.