This dog toothbrush is a rubber material that is easy to clean and can also be cleaned in the dishwasher.To keep the brush stick clean, we recommend cleaning before and after the dog chews. This is not just a dog toothbrush or a chewing toy.Dogs staying at home every day often lose energy and feel frustrated,which can tear home furniture.Occasionally,some dog lure can be put on it to make it fun. It can chew toys,relieve boredom,and release emotions.[SPECIAL REMINDER]: Be sure to choose a toothbrush according to the dog's weight. If the dog violently tears the toothbrush, immediately let it stop and guide him to use it correctly. We use good sturdy non-toxic rubber, which can better guarantee the extended use time. If it encounters more violent tearing, it will still be damaged. After all, the dog’s teeth are very strong and can tear both bones and sticks. If you find that the massage cleaning ball is accidentally swallowed during use by the dog, please don't worry that it will not cause harm to the dog.