The Hertzko Self-Cleaning Slicker Brush is a slicker brush with a button to retract the bristles and release collected hair for easy cleaning. When choosing a brush, check the retailer listing for the size and whether the bristle firmness suits your dog's coat type and sensitivity. Slicker brushes help remove loose hair and small tangles but should be used gently to avoid scratching the skin. Use on dry coats and brush in the direction of hair growth. FetchBoy does not provide veterinary advice; consult your vet or a groomer for skin or coat concerns. FetchBoy has not hands-on tested this brush; this is buying guidance to help you compare options on Amazon.