Have three sizes:small,meduim,large and the material is stainless with smooth gloss surface, not easy deformed. It can effectively removing loose hair, dander & dirt trapped beneath fur, Keeping your dogs knot free and feelin’ silky smooth. The metal comb for dogs are cylindrical and the chrome plating forms a rounded bottom, don’t hurt your pets at all, when combing the hair, it can go deep into the hair layer and massage the skin. Use the wide teeth to removing the knot, suitable to make a style of large areas of fluffy hair, and use the dense teeth side to comb the fine hair around the ears and eyes.