LUCKSTAR 6PCs Tooth Resistant Silicone Pet Dog Frisbee Flying Disc Outdoor Large Dog Training Fetch Toy Material: Incredibly soft, durable, use environmental friendly silicone material Dog's teeth grow very quick so they always like hold something in mouth The scientists said that dog is like a kid they want to play all the time, of course they also want toys. The pet Frisbee is very strong you don't worry about the quality it can support most dog's bite force. It's great one for outdoor activities for your pets.