Rotating pins;Available in double row and single row;Quality Guaranteed;Removes loose undercoat and helps to prevent matting;Keep your dog's coat looking great with our dog undercoat rake featuring rotating pins;Gentle method of getting your dog looking its best;Teeth rotate to pull through the coat without damaging it;Ideal for collies, Golden Retrievers, St. Bernards, Siberian Huskies, Newfoundlands, Chow Chows, terriers, and schnauzers;Comb the entire coat before baths for great results;Effectively removes mats and tangles