Neapolitan Mastiff is a large Italian dog breed known for its impressive size, strength, and protective instincts. They have loose, wrinkled skin and a massive head with a powerful jaw. These dogs were originally bred as guardians, and they are highly loyal and protective of their family. They require socialization and consistent training from an early age. Neapolitan Mastiffs are not recommended for inexperienced dog owners due to their size and temperament.