Wiredog Brand Self Cleaning Slicker Brush - Gently Removes Loose Undercoat, Mats and Tangled Hair - Exclusive. Simply the best brush out there: Fantastic grooming results for all sized dogs A simple click of the button and the bristles retract back into the brush, making is super simple to remove hair from the brush, it's that easy Easy on your hands: Special ergonomically focused handle makes brushing your dog easy Gentle on your dog's skin: Easy on all dog skin types - even sensitive skin Lifetime guarantee: Unconditional 100% money back guarantee