I have found that the KittyKat comb's rotating teeth not only do a good job of untangling cat hair; they also do a great job of removing loose and dead hair--better than some products that are advertised for just that purpose. Plus, they don't get clogged with oil or dirt like some short-toothed products do. I love these combs and use them for short, medium, and long-haired cats. Thank you!