Made of 100% natural E-TPU, no chemical odor, safe and healthy for your dog. E-TPU premium material, high quality food, ecological and non-toxic. The grain design on the toy & agrave; my dear help cleaning animal teeth , massages animal’s tongue and is also good for water play. Easy & agrave; clean, just rinse & agrave; water. The dog ball can float on the water, if your dog likes to swim, it will bring & agrave; your dog more fun.The interactive dog ball can inspire his hunting instinct to chase this toy madly. Durable dog toy tested & eacute; and certified, prevents tearing from animal bites, helps the dog fight boredom, can quickly get back into shape after the bite. Similar products on the market; can be bitten, and there are raw materials one by one, which harms; chewing the dog. But the materials of our products are completely integrated.