This is a gift for dogs. It not only meets the dogs chewing desire, but also brings a better aesthetic and life experience to him. Made from three different materials, it brings the dog three different chewing sense, which not only relieves his mood, but also cleans his teeth protects his oral health and increases his intelligence.[Made from three materials] The three different materials are soft main body, hard shell and cotton ropes, allowing dogs to enjoy three different chewing tastes. The toy's head and limbs are made from elastic material, thick and bite resistant, fully stimulating the dog's chewing desire and make him feel the tearing pleasure. The shell is made from hard nylon that acts like a body armor to protect the toy from the damage of strong bite force and impact forces.[Specially designed for medium and large-sized dogs] Medium and large sized dogs have stronger bite force, so they have higher chewing. The shell is of high hardness, which can satisfy them and bring them chewing pleasure. The cotton ropes also meet the needs of different chewing mouthfeel, which not only increased the dog's interest in the toy, but also you can use it to play tug-of-war with your dog. This toy can also be used by puppies of medium and large-sized dogs.[Safe material and chewing design] Raw materials of the toy do not contain any bisphenol A, PVC or phthalates; its made form food-grade elastic rubber and nylon, and with cotton ropes. The conical chewing bumps of the toy are elastic, so they won't hurt the dogs mouth, rather they act like a toothbrush to clean tartars, and protect his oral health. You can rest assured to let your dog use it.