We had a great mule that was used for lessons at our barn. She was pretty too, about 16.1+ hands, maybe bigger. They needed bigger horses to carry bigger students, so she came in. If it weren't for the mealy color around her muzzle and her long ears, you would think she were a horse. She was a great beginner jump horse and was steady to each fence. Not great form but safe and always went. Canter was a little odd as it looked kind of gaited if you know what I mean, not four beat but odd even though she was big and had a long stride. The kids loved her and compared to other lesson horses was never off and had hooves of steal.