The Squatz Supine Board with Handrail is a multifunctional fitness device designed to help you perform a variety of exercises, including sit-ups and abdominal workouts. This adjustable board features five levels of height adjustment and a spring-assisted mechanism for easy arm exercises. Built with a triangular support design and a soft foam pad, it offers stability, comfort, and durability. The board's construction ensures a safe and stable workout experience, helping you tone your abs, build muscles, and sculpt your body.