Andis Vertical dematting. Raking to remove knots. Blades with serrated blade specially designed remove knots and tangles more refractory. Stainless steel blades, sharp for optimum cutting effect. Ideal for long and semi-long hair. Reduces knots up to 90% keeping an undamaged finish. It incorporates an ergonomic handle for everyday use. , , Bristles are well spaced to ease past as a hair by hair and they are sharp to face the toughest knots. Serrated saw.