Our Evolution Dog Undercoat Rakes with Rotating Pins is designed for dogs with thick, heavy coats or with undercoats. The rotating teeth pull through the dog's coat without damaging it. Comfort grip handles make grooming your dog a pleasure. Available in double row or single row, these rakes feature smooth, rounded pins that penetrate deep into your dogs coat to remove loose undercoat. When used regularly, they help prevent matting. Apply minimal pressure when using these tools.