/Sundevilbullmastiff-11772/ This little girl is so sweet. She is a cross between the beautiful and graceful bullmastiff with the lean strength and courage of the Tosa-inu (which is a Japanese Mastiff) and the mix is amazing. For all you who enjoy running the Tosa bull will be right by your side, she will be athlete. Brave and courageous and able to catch birds and rabbits. She will want to curl up next to you and be gentle with a family but also skeptical of strangers. The Tosa bull are amazing protectors and have no fear. Visually the Tosa inu and bullmastiff are almost identical and weight about the same but the tosa is taller leaner and a slightly longer snout. Potential owners will be very happy with this cross breed and I will give the registrations of both parents as they both are pure breeds.