Tony Little Gazelle

Hi, occasionally I'm use a basic Tony Little Gazelle (with no resistance) and I was just wondering when I'm entering that into my exercise diary what do I call it? I've noticed there is no "Gazelle" or even "Tony little". I would just add it in myself but I don't know how many calories I burn from it so I was wondering if maybe there's an exercise that's similar to it already in the database and what I could search for? Thank you