The KW Smart Blade 20 is designed for trimming wire-haired breeds, as well as for trimming the undercoat of spaniels and setters and short-haired breeds and cats.The product is used to remove loose and dead hair on animals with undercoat, especially during the shedding process. It can be used during shedding about once a week, outside shedding once a month or not at all.Comb or brush the coat first and work on one section at a time. Start at the bottom of the body and work your way up. Lift the coat up so that you reach the bottom. Gently pull the Smart Blade through the coat in the direction of hair growth to avoid breaking the hair.Facts about the KW Smart Blade 20:For trimming undercoat. Suitable for wire-haired & short-haired breeds, as well as cats. Removes loose and dead hair.Can be used once a week during grooming.