Removes Loose Undercoat Hair Without Damaging The Top Coat Spinning Stainless Steel Teeth Help Ease Through Knots And Tangles With Short Teeth, Ideal For Medium Coats The Mikki Anti-Tangle Undercoat Rake Is An Easy Way To Help Diffuse Matts And Tangles As Well As The Removal Of The Fluffy Undercoat, Leaving A Healthy Top Coat. Run The Rake Through Your PetS Coat Applying No More Pressure Than You Would When Brushing Your Own Hair. Allow The Spinning Teeth To Gently Ease Through Any Tangles. On Heavy Matted Areas, Gently Saw The Rake Back And Forth To Loosen Tangles.