Today he has arrived and I got him the same course ever tried. Have the ridge however dampened somewhat and cats shampoo it. So I read the fleas stick. No sooner said than done, and two fleas I directly times to even identified. only at our Norwegian I have come a little trouble through the thick fur. at shorthaired it works great. Long hair is a little more difficult, but not impossible. Where I have the advantage that they are accustomed to be combed and then zicken not so rum.