This remarkable solution consists of small tubes filled with cotton balls treated with the insecticide Permethrin. To use it, simply place Damminix Tick Tubes in areas around your yard where mice frolic. That's it. Mice will do the rest for you by gathering the cotton to build nests in their burrows. Young ticks feeding on the mice are killed by the insecticide before they can spread Lyme Disease to you, your family and your pets.