He's in the 2 - 3 year old range, a big fellow! We think there's some Rottie in there, but regardless, he's in the 90 lbs range. He's on the bossy side, likes to be the one who takes control of playtime with other dogs, and does need to be corrected when he comes on too strong. Prey drive is there for cats, so not a cat home! His leash skills are quite good, and he's learned his basic commands, comfortable in the vehicle. Found rurally and never claimed, he's been neutered now, vaccinated and in good health. His recall is quite good, and he is human-friendly. Older kids should be okay for this happy fellow.