The FURminator adjustable dematter tool safely and easily removes matted hair on both dogs and cats. The tool works with most hair types, long or short, thick or fine, and for most animal types. Regardless of hair type, always use on a dry pet So mats are loose.Adjust the edges to accommodate all pet hair lengths for ease of USE. The easy slide tab locks edges in place while the curved cutting edges provide added safety when using. With an ergonomic non-slip handle for maximum comfort, This tool is built to last.