Just wrap it around for abdominal muscles! Active Slender Waist size: 61-100cm Hardly used, used very little. Controller, ab belt, pad set (large x 1, small x 2), instruction manual, user guide Shop Japan Model number: ACT-WS01 Stored at home, so it has a home smell (we have a dreaded smoker in our house). Please refrain from purchasing if you are looking for perfection. If you are concerned, it will probably disappear if you leave it in a well-ventilated shade.