The newly designed dog canine molar channel has completely surpassed similar products. When the pet bites the product, the canine will enter the curved cleaning trough in the molar channel, and the staggered cone molars in the cleaning trough will clean up the canines from top to bottom. This product can effectively remove the dirt from the roots of the dog's canines and ensure the daily health of the pet dog's oral cavity. Two whistles are placed at both ends of the toy, which can attract dog's attention better and improve its interest in playing. This product is suitable for dogs in any kinds of breeds (including ferocious dogs) Serrated teeth can better clean up the stones and dirt in the dog's molars. The triangular cone-shaped molar protrusion is designed to clean the dog's incisors, when dog is playing with this toy, dog's incisors will bite the triangular cone-shaped molar protrusion area, which will clean the incisors deeply. Daily protection of dogs' incisors will keep them more healthy. The newly designed serrated molar protrusions are distributed horizontally and vertically. According to the dog's chewing habits, the dog usually use molars when chewing this product. Each serrated molar protrusion is designed with 2 protrusions, so that when the dog chews this product it will increase friction between the molar protrusions and molars, which will clean up the calculus and dirt on the molars thoroughly.