Natural Safe Non-toxic Toys Summer Pets Accessories For Dogs And Cats. 1. Avoid heatstroke. Dogs can only use their tongues to dissipate heat. The water injection hole is located on the surface of the chewing toy. Once frozen, it is used for your pet so that the dog can cool down and drink water while playing. 2. Easy to use: Open the bottom hidden lid of the dog bite toy, fill it with 90% water and refrigerate it. Keep your pets safe in the summer. 3. Cleans Teeth