Ergonomic Design for Maximum Comfort The ab machine bench features an ergonomic design that ensures optimal comfort during abdominal and leg workouts. Its contoured shape and cushioned surface support proper body alignment, making your exercises more enjoyable and effective. Adjustable Length for All Users With four adjustable length settings, this ab work chair is perfect for users of all sizes. Whether you're tall or short, you can easily customize the bench to suit your needs, making it ideal for the entire family. Safe and Stable Structure Designed with a triangular stability structure and a reinforced steel frame, this ab trainer offers exceptional stability and prevents wobbling during use. Once set up, you can easily switch between different exercises by inserting or removing the pins. Enhanced Cushioning and Foam Roller The fitness bench features a thickened seat cushion and soft foam rollers, providing extra comfort throughout your workout. Supports Up to 300 Pounds Built to support up to 300 pounds, this Exercise Chair is suitable for a wide range of users and workout types.