This product has a sound function. When the dog bites the toy, the toy will make a sound to attract the dog's attention, increase the dog's interest in playing with this product, and it can also clean the dog's teeth.This product is designed according to the features of dog's teeth, the newly designed massage bumps are zlgzacand arranged horizontally and vertically, which can thoroug hly clean dog's incisors, cannies andmolars when playing the toy, in addition, remove all kinds of rice residue, dirt and calculus effectively,fully protecting dog's dental health.When dog is playing the toy, dog toothpaste or attractant can be applied in the teeth cleaning aisle, to attractdog's interest and truly realize the function of the dog brushing teeth by himself while playing.This product is made of healthy and bite resistant TPR material and tearing resistant cotton rope, which willnot be deformed even if dog plays with it for a long time.This toy is suitable to small ,medium, and large dogs in any breeds. It can be used indoor and outdoor. Dogs use the toy frequently can fully consume their extra energy, clean teeth, improve lQ, exercise, and relieve anxiety,also avoid dogs damaging furniture or clothes when the owner is away.