8 month old purebred mastiff puppy

8 month old purebred mastiff puppy, black with slight brindle puppy. Super sweet dog but is incredibly hyper and needs somewhere they can run or perhaps be outside. Updated on basically one shot. Just isn't fixed. Includes XXL dog kennel, bowls, no pull harness, double handled leash, and shot collar for added fee. Costs are mildly negotiable. Will get papers for breeding if you choose to do so.