The slicker brushes have a rubberized pad with metal pins, and may or may not have a rubber handle, wood or metal. The combs for dogs and cats, on the other hand, are very similar to those used to groom human hair. The big difference between these accessories is in the area of reach. While slicker brushes cover a larger part of the hair due to their shape, combs are more specific and support less hair. In addition, not all breeds can be brushed with both models.