1. This is a smart water spray toy. 2. When you go out to swim or take a bath, put the product into the water and it will automatically float on the water surface 3. The toy will automatically spray water upwards, and will automatically stop spraying when the dog is taken out of the water. 4. There are serrated molars of different sizes and strengths on the surface of the toy. Dogs can remove dental calculus and protect oral problems during play. 5. It is a multi-functional water spray toy, which integrates water spray toys, water floating functions, and teeth cleaning.