SHARP AND EFFECTIVE DOG BRUSH: This dog brush is made of high-quality, sturdy stainless steel. The inside of the blade is very thin to keep it exceptionally sharp. Especially during shedding season, you can comb through mountains of undercoat in no time, preventing it from flying around your house. Your dog will also feel much more comfortable and won't chew or scratch as often. DOUBLE-SIDED BLADE DESIGN: Our dog brush has two different "blade" configurations—9 teeth and 17 teeth. First, use the coarse side to remove rough undercoat and tough tangles, then use the finer side. It takes a little practice and patience to transform your dog's coat from shaggy to beautifully smooth and soft. GENTLE COAT CARE: The rounded, smooth edges of the teeth on both sides of the dog brush glide easily through the coat without hurting the skin, causing no irritation, allergies, or side effects for your pet. Gently massaging the skin with the dog brush promotes blood circulation and prevents allergies