Andis 66055 Dematting Tool. Removes mats, tangles and knots, leaving a healthy skin and coat. Specially designed blades shaped for optimum cutting effect. Lightweight for fatigue-free grooming. Heavy-duty stainless steel blades can be set for left or right hand user. Designed to take out mats while hair passes through blades. Anti-slip, easy grip handle for safe and comfortable grooming.