The collar is ingeniously designed to replenish itself with flumethrin in cases where the substance has already been depleted from the band's core. (mypetneedsthat.com)
This collar works by slowly releasing potent pesticides imidacloprid and flumethrin in safe, ongoing, low doses. (wileypup.com)
It uses a small amount of the insecticide flumethrin which is also used to control pests on cattle, horses, and sheep. (petsprinciple.com)