The Wonder Core SMART Sit up Exercise Equipment is a versatile abdominal machine designed to provide a comprehensive core workout. With adjustable resistance from 24 to 48 pounds per side it targets your upper middle and lower abs as well as oblique muscles for a well-rounded exercise experience. The compact foldable design makes it easy to store and transport while the anti-slip base ensures stability during your workout. Included with the machine are an exercise guide and a nutrition guide to help you achieve your fitness goals. Whether you re a beginner or a pro the Wonder Core SMART can help you sculpt a stronger leaner midsection.