My dog, a shetland pony and therefore a long hair, did not seem to enjoy the first try. But I continued because the amount of hair collected was more than impressive, I had enough to make me a nice cushion! Today he appreciates as much as his old brush, definitely in the closet! Sometimes we wonder if we do not break the hair, but in the end the animal is much more beautiful after, and seems quite happy with his grooming sessions. I will add that my cats also enjoy this brush. Finally, I saw the price of Furminator size M with my vet yesterday and there is no picture, thank you Amazon!